Ametek JOFRA RTC-156/157 B/C User manual

User manual
JOFRA DLC-155/158/250/700
Copyright 2010 AMETEK Denmark A/S

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Table of contents: Page
1.0 General information ......................4
2.0 Introduction....................................5
3.0 Functionality..................................6
3.1 Functional description..................6
3.2 Connections................................6
3.3 Serial number..............................8
4.0 Operation........................................9
4.1 Operation area............................9
5.0 Maintenance.................................10
5.1 Calibration.................................11
6.0 Technical specifications.............15

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1.0 General information
This manual is only effective for the following
products:
JOFRA DLC-155
JOFRA DLC-158
JOFRA DLC-250
JOFRA DLC-700
The products are manufactured by:
AMETEK Denmark A/S
Gydevang 32-34
3450 Allerød - Denmark
TEL: [phone]
FAX: [phone]

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2.0 Introduction
The JOFRA DLC-155, DLC-158, DLC-250 and DLC-
700 probes are designed for fast and traceable
calibration and temperature measuring with JOFRA
RTC-156/157 B/C, JOFRA RTC-158 B/C, JOFRA
RTC-250 B/C and JOFRA RTC-700 B/C systems
and are ready for use.
Please read this manual carefully before use, to
obtain maximum value of your calibration system.
Warning
 Read this manual before use.
 Do not use in hazardous area.
 Handle carefully.
 Never exceed temperature range

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3.0 Functionality
3.1 Functional description
The probes can be used for temperatures in the
range :
 DLC-155 : -60°C to 155°C / -76°F to 311°F
 DLC-158 : -60°C to 155°C / -76°F to 311°F
 DLC-250 : 0°C to 250°C / 32°F to 482°F
 DLC-700 : 0°C to 700°C / 32°F to 1292°F
The JOFRA DLC-155, DLC-158, DLC-250 and DLC-
700 probes may be supplied with a certificate for a
limited temperature range.
3.2 Connections
The probes are delivered with a connecting cable.
The pin-layout is as follows:
Pin 1 : TC V-
Pin 2 : TC V+
Pin 3 : Memory GND
Pin 4 : Memory I/O

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The figure below is shown from the connector side
of the probe connector.
1
2
3
4

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3.3 Serial number
The serial number is placed on the probe as shown
on the figure below:
Serial number

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4.0 Operation
4.1 Operation area
All the probes are intended for use in areas which
meet the following:
Ambient temperature
range : -20°C to 70°C (-4°F to 158°F)
Humidity : 0% to 90%
Protection class : IP 50
Warning
Do not use in hazardous areas.

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5.0 Maintenance
The probe does not require specific maintenance
before or after use. The user may carry out the
following procedure himself:
 Cleaning the probe : Use alcohol or water
and a soft cloth.
Caution…
 The probe must always be protected
against any mechanical damage.
 The probe must never be exposed to
mechanical shock effects.
 Avoid thermal shock
 Any bending of the probe may cause
permanent damage