Ametek JOFRA CSC200 User manual

Reference Manual
Compact Signal Calibrator
AMETEK JOFRA CSC200
 Copyright 2005 AMETEK Denmark A/S

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1. Introduction
The Ametek Jofra CSC200 is designed to calibrate a wide range of
thermocouple and RTD devices. It can source or measure up to 14 different
thermocouple (TC) types (including millivolts) and up to 17 RTD types
(including ohms). A unique digital "knob" along with selectable decade
controls allows quick and easy adjustment of the desired output. The user
can also store up to 3 setpoints for any output range for quick recall.
Setpoints are stored in non-volatile memory and will remain until new
setpoints are stored.
1.1 Contacting Ametek
US, Canada, Latin America AMETEK TCI at 1-800-527-9999
Europe, Africa, Middle East AMETEK Denmark A/S at + 45 4816 8000
Asia AMETEK Singapore Pte. Ltd. at
+ 65 (64) 842 388
1.2 Standard Equipment
Inspect the unit carefully upon receipt. Save packing carton in case re-
shipment is necessary. If there appears to be any damage, equipment missing
or if there are any questions about the unit, contact AMETEK.
Check to see if your calibrator is complete. It should include:
• CSC200 Calibrator
• Instruction Manual
• Test Leads
• Carrying Case

1.3 Safety information
Symbols Used
The following table lists the International Electrical Symbols. Some or all of
these symbols may be used on the instrument or in this manual.
Symbol Description
AC (Alternating Current)
AC-DC
Battery
CE Complies with European Union Directives
DC
Double Insulated
Electric Shock
Fuse
PE Ground
Hot Surface (Burn Hazard)
Read the User’s Manual (Important Information)
Off
On
Canadian Standards Association
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This calibrator must be recycled or disposed of properly (2002/95/EC).
The following definitions apply to the terms “Warning” and “Caution”.
• “Warning” identifies conditions and actions that may pose hazards to the
user.
• “Caution” identifies conditions and actions that may damage the
instrument being used.
Use the calibrator only as specified in this manual, otherwise injury and
damage to the calibrator may occur.
Warning
To avoid possible electric shock or personal injury:
• Do not apply more than the rated voltage. See specifications for supported
ranges.
• Follow all equipment safety procedures.
• Do not use the calibrator if it is damaged. Before you use the calibrator,
inspect the case. Look for cracks or missing plastic. Pay particular
attention to the insulation surrounding the connectors.
• Select the proper function and range for your measurement.
• Make sure the battery cover is closed and latched before you operate the
calibrator.
• Remove test leads from the calibrator before you open the battery door.
• Inspect the test leads for damaged insulation or exposed metal. Check
test leads continuity. Replace damaged test leads before you use the
calibrator.
• When using the probes, keep your fingers away from the probe contacts.
Keep your fingers behind the finger guards on the probes.
• Do not use the calibrator if it operates abnormally. Protection may be
impaired. When in doubt, have the calibrator serviced.
• Do not operate the calibrator around explosive gas, vapor, or dust.
• Disconnect test leads before changing to another measure or source
function.
• To avoid false readings, which could lead to possible electric shock or
personal injury, replace the battery as soon as the battery indicator
appears.
• To avoid personal injury or damage to the calibrator, use only the specified
replacement parts and do not allow water into the case.

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Caution
To avoid possible damage to calibrator or to equipment under test:
• Disconnect the power and discharge all high-voltage capacitors before
testing resistance or continuity.
• Use the proper jacks, function, and range for your measurement or
sourcing application.
• To avoid damaging the plastic lens and case, do not use solvents or
abrasive cleansers.
Clean the calibrator with a soft cloth dampened with water or water and mild
soap.
2. Calibrator Interface
2.1 Display and Inputs
The CSC200 has a large LCD area that displays the function selected and
the input/output value. Input terminals on the top of the calibrator are used
for all TC and RTD connections Figure 1 illustrates many if these features.
2.2 Key Functions
Figure 1 shows the layout of the calibrator keypad while Table 1 lists the
calibrator keys and their functions.

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Table 1: Key Functions
Key Function
1 Turns the unit on and off
2 Selects between thermocouple or RTD functions
Note: Also selects °F/°C units as a power-up function
3 Displays and selects TC or RTD type used in conjunction with knob.
4 Selects input (measure) or output (source) mode
5 Recalls stored setpoints for the function selected
6 Press to store setpoints
7 Left/Right arrow keys move the decade adjust cursor to the desired decade
8 Digital adjustment of output and RTD/TC type selection
Figure 1

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2.3 Power Saver
The calibrator has an adjustable power saver option that allows it to shut
down after being dormant for a period of 1 to 30 minutes. To set the shutoff
time, perform the following:
1. With the CSC200 turned off, hold down the left arrow key and turn on the
power. Continue to hold down the left arrow key until the power-up
sequence is complete (about 5 seconds) then release.
2. Using the knob, adjust the time from 1 to 30 minutes or disable
completely.
3. Press the left arrow again to return to normal operation. The new auto-
shutoff setting will be saved in non-volatile memory.
2.4 Default Temperature Unit Selection
The CSC200 can display all temperatures in either °F or °C. Once the
desired units are selected the setting will be stored in non-volatile memory
until changed by the user.
The unit ships from the factory with the temperature units set in the °C mode.
To change to °F do the following steps:
1) With the CSC200 turned off hold down the TC/RTD key.
2) Turn on the CSC200 and continue to hold down the TC/RTD key until the
display indicates °F (takes about 5 seconds)
3) Repeat the process to switch back to °C
3. Operation in the Thermocouple Mode
The CSC200 can input or output any one of the 14 different thermocouple
types. To operate in the TC mode refer to Figure 2 and proceed as follows:
1) Select the TC mode by pressing the "TC/RTD" key.
2) Select the TC type by holding the "Type" key and turning the knob.
3) Press the "I/O" key to select either input or output
4) Insert the proper TC wire into the mini-connector (See Figure 2)
5) When operating in the output mode use the digital knob and cursor
controls to select the desired output. For advanced output options refer
to Section 5 Setpoint Mode Operation.

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3.1 CJC Control
To disable the CJC proceed with the following steps:
1) With the unit turned off press and hold the I/O key.
2) Turn on the unit while still holding down the I/O key.
3) Approximately 5 seconds after power up release the I/O key. The CJC
off annunciator will be displayed on the LCD when operated in the TC
mode.
4) Turning the CSC200 off then back on will return the unit to normal
operation (CJC on).
NOTE: When operating in the direct millivolt mode the CJC is not used.
Figure 2
4. Operation in the RTD (ohms) Mode
The CSC200 can input or output any one of 17 different RTD types including
ohms. Operation in the input mode includes 2, 3 and 4 wire RTD's and YSI
Series 400 Thermistors. When operating in the output mode the CSC200
can simulate a RTD output into virtually all transmitters and RTD input
devices including pulsed excitation current instruments.
4.1 RTD Input (measure) Mode Operation
To operate the CSC200 in the input mode refer to Figure 3 for the proper
input connections and proceed as follows:
1) Select the RTD mode by pressing the "TC/RTD" key.
2) Select the RTD type by holding the "Type" key and turning the knob.
Note: The PT-100 (platinum 100 ohm) has several Alpha curve choices
(385, 392, JIS, etc.), take care to select the proper one for your
application.
Note: The TC wire used must
match the thermocouple type
being calibrated.

3) Press the "I/O" key to select the input mode.
4) Rotate the knob to select the 2, 3, or 4 wire mode. Be sure the
connections made match the input mode selected. Annunciators on the
LCD will indicate which wire mode is selected.
Figure 3
4.2 RTD Output (simulate) Operation
To operate the CSC200 in the output mode refer to Figure 4 for proper output
connections and proceed as follows:
1) Select the RTD mode by pressing the "TC/RTD" key.
2) Select the RTD type by holding the "Type" key and turning the knob.
Note: The PT-100 (platinum 100 ohm) has several Alpha curve choices
(385, 392, JIS, etc.), take care to select the proper one for your
application.
3) Press the "I/O" key to select the output mode.
4) Using the digital knob and cursor control adjust the output to the desired
output.
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