WIKA CTD9300 Series Manual de usuario

Operating Instructions

Betriebsanleitung

CTD9300

Temperature Dry Well Calibrator

Temperatur-Blockkalibrator

Temperature Dry Well Calibrator CTD9300-165/650

Temperatur-Blockkalibrator CTD9300-165/650

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Temperature Dry Well Calibrator Page 1 - 66

Temperatur-Blockkalibrator Seite 69 - 133

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Temperature Dry Well Calibrators CTD9300

Contents

WIKA Operating Instructions CTD9300 Rev. 1

Contents

Information!

This symbol identifies information, instructions or useful hints.

Caution!

General point of hazard! Please heed the operating instructions.

Danger!

Hazard of personal injury through electric voltage.

Danger!

Hazard of personal injury through high temperatures.

1. General Instructions 5

2. Device Description 9

3. Moduses and Functions 21

4. Operating the Calibrator 51

5. Technical Data 60

6. Appendix 64

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Temperature Dry Well Calibrators CTD9300

Preface

WIKA Alexander Wiegand SE & Co. KG

Alexander-Wiegand-Straße 30

D-63911 Klingenberg

Germany

Phone no.: (+49) 93 72/132-0

Fax no.: (+49) 93 72/132-406

info@wika.de

www.wika.de

Preface

Congratulations on buying a WIKA temperature dry well calibrator

of the CTD9300 family. For the time being, this family of

calibrators comprises two devices for the following temperature

ranges:

CTD9300-165 from -30 °C to 165 °C

CTD9300-650 from 40 °C to 650 °C

Since the operation of the devices is identical, we have decided to

combine the operating instructions for the two devices.

The operating instructions are intended for skilled workers and

semi-skilled workers. Thoroughly read the associated instructions

prior to every work step and adhere to the sequence specified.

Read the "General Instructions" section especially attentively.

Memorise the pictograms and their significance.

The device is designed for calibrating temperature switches,

thermocouples, resistance thermometers and mechanical

thermometers. Please use them in compliance with their intended

use.

If you encounter any problems or if you have any questions, please

revert to your supplier or directly to the manufacturer.

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5WIKA Operating Instructions CTD9300 Rev. 1

Temperature Dry Well Calibrators CTD9300

1. General Instructions

1.1 Fundamental Safety Instructions

When performing any work on the device, always heed the national

safety instructions and accident prevention regulations as well as

the following safety instructions in the present operating

instructions.

Through the power cable, the device is supplied with a voltage

hazardous to people.

The faultless and safe operation of the device requires appropriate

transport, professional storage, setup, and use as intended as well

as cautious operation and servicing.

Applications other than those described in the present operating

instructions is regarded to be improper use and must thus be

excluded.

If faults cannot be eliminated, the device must be shut down

immediately and protected against inadvertent startup.

Danger!

Only the manufacturer is authorized to perform repairs.

Manipulation and modifications of the device are illegal.

Before replacing the safety fuse, the device must be disconnected

from the mains voltage by pulling the power plug out of the mains

socket.

For other important safety instructions, please refer to the

individual sections of these operating instructions.

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Temperature Dry Well Calibrators CTD9300

1. General Instructions

WIKA Operating Instructions CTD9300 Rev. 1

GB 1.2 Safety Instructions Relating to Operation of the Device

The temperature dry well calibrators of the CTD9300 series have

been developed and manufactured in compliance with the state of

the art. This applies to the accuracy of measurement, the mode of

operation and the safe operation of the devices. To guarantee safe

operation, however, the operator must behave in an expertly and

safety-conscious manner.

Relevant instructions are included in this section. Warnings relating

especially to individual functional sequences and tasks are also

included in the respective sections of the present operating

instructions. These warnings are identified by special symbols.

Caution:

Use the calibrator exclusively in compliance with the descriptions

included in the present operating instructions. Failure to observe

the safety instructions and operating instructions will impair the

protective measures provided.

Danger!

Before touching the dry well or the adapting sleeve, check the

current dry well temperature since a heated device bears the

imminent risk of burns.

Since there are high temperatures on the top of the calibrator

directly in front of the dry well bore, the following warning has been

attached to this area:

Caution!

Directly to the right of the power switch the warning symbol is

displayed. It advises you to read the corresponding chapters

(e.g. chapter 2, chapter 3) of the operating instructions.

Fig. 1: Warning sign

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7WIKA Operating Instructions CTD9300 Rev. 1

Temperature Dry Well Calibrators CTD9300

1. General Instructions

Safety Instructions:

Remove all highly combustible media from the vicinity of the

device and ensure that it cannot come into contact with easily

inflammable or explosive substances.

Make sure that the integrated fans can always deliver sufficient

cooling air. Do not impair the air supply by placing the devices

on a soft, resilient surface.

Connect the devices to a power circuit with minimum risk of a

power failure, since it will no longer be possible to supply

cooling air in the case of a power failure

Make sure that the adapting sleeves and probes are not

contaminated with any substances (e.g. oil) that may cause

ignition or explosion during heating.

Never remove adapting sleeves from a heated dry well since

heated adapter inserts bear a fire hazard.

Never remove probes from a heated dry well since these bear the

imminent risk of burns.

Never leave a heated device unattended.

Always let a heated device cool to below 50 °C before

disconnecting it from the mains.

Never try to repair the device yourself, always revert to the

manufacturer.

Since the housing of the calibrator is made of metal, only power

cables with ground wire may be used. Operate the calibrator

exclusively with the power cable provided. The power cable

connector is on the bottom of the calibrator, i.e. when using a

different type of cable, the calibrator may topple over.

If the calibrator is not used for an extended period of time, humidity

may penetrate into the heating element due to the material used.

After transporting or storing the calibrator in a humid environment,

the heating elements must thus be heated slowly when starting the

calibrator. During the drying process, the calibrator will not have

attained the isolation voltage required for protection class I.

The noise ramps of all dry well calibrators of the CTD9300 series

are below 70 dbA.

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Temperature Dry Well Calibrators CTD9300

1. General Instructions

1.4 Duty to Take Due Care of the Operator

For safe operation of the device, the operator must especially

ensure that:

the device is exclusively used as intended (refer to the section

"Intended Use" in chapter "Device Description") and that no

hazardous media are used and all the technical specifications

are adhered to.

the device is operated in faultless, fully functional condition

only.

the present operating instructions are always available in legible

condition and complete at the application site of the device.

only authorised and qualified personnel operates, maintains and

services the device.

the operator of the device is periodically instructed in all

applicable operational safety and environmental protection

issues and that he/she is familiar with the operating

instructions, especially with the safety instructions contained

therein.

1.3 Ground Wire Monitoring

For checking the basic isolation of the heater, the calibrator is

equipped with a ground wire monitor. The monitoring unit operates

independently of the other controller components and switches off

the power supply of the heater as soon as the calibrator loses the

connection to the ground wire system of the isolation. Once the

connection to the ground wire system has been re-established, the

monitoring unit automatically reconnects the heating circuit to the

power system.

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9WIKA Operating Instructions CTD9300 Rev. 1

2.2 Structure

Temperature dry well calibrators consist of an electrically heated

metal block and a control unit. The two components are

accommodated in a robust metal housing together with a fan. The

metal block is fitted with a bore in its centre for holding the

adapting sleeve. This adapting sleeve contains one or several bores

of different diameters for thermically coupling thermometers of

various thicknesses optimally to the heated metal block. Good

thermal coupling between the block, the adapting sleeve and the

thermometer is very important for keeping measuring uncertainty

during calibration to a minimum.

Temperature Dry Well Calibrators CTD9300

2. Device Description

2.1 Intended Use

2. Device Description

The calibrators of the CTD9300 series may be used exclusively for

the calibration and verification of thermocouples, resistance

thermometers, mechanical thermometers and temperature

switches.

The introduction of foreign substances such as oil or heat

conductive paste with the aim of enhancing the heat transfer to the

probe can damage the calibrator and the adapting sleeve.

In addition, there is a risk of injury due to abruptly evaporating

fluids and hazardous gases that may form when fluids evaporate.

Always ensure that the testing temperature is not too high for the

probe. Otherwise, the probe may be destroyed.

Remove all highly combustible media from the vicinity of the

device and ensure that the device cannot come into contact

with easily inflammable or explosive media.

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10 WIKA Operating Instructions CTD9300 Rev. 1

Temperature Dry Well Calibrators CTD9300

2. Device Description

GB Calibrators for Low Temperatures

If the calibrator generates temperatures lower than the ambient

temperature, it must be able to cool actively. In this case, the

isothermal block is made of aluminium and is cooled and heated

through Peltier elements. Depending on the polarity of the voltage,

the Peltier element will heat up on the top side while the opposite

side is cooled. One side of the element always makes contact to the

isothermal block. The other side is connected to a cooling element

that is cooled by a strong fan.

Through reversing the polarity and controlling the voltage at the

Peltier elements, the block can be heated and cooled. For technical

reasons, the max. attainable temperature with Peltier elements is

limited to approx. 165 °C. Depending on the model, the min.

attainable temperature is -50 K to -60 K relative to the ambient

temperature.

Calibrators for High Temperatures

High-temperature calibrators for temperature ranges of from 40 °C

to 650 °C generally work with resistance heating elements.

Depending on the upper limit temperature, different block materials

are used. Brass, bronze or scale-resistant steels.

Due to the low temperatures caused by the permanently decreasing

cooling capacity of the air flow surrounding the block, the control

unit starts working sufficiently fast only at 20 K above the

respective ambient temperature. This limits the lower working

temperature of a device of this kind to approx. 40 °C.

The upper limit is defined through the block material used and the

temperature resistance of the heating elements used.

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