TEL-TRU 530 User manual

TEL-TRU MANUFACTURING COMPANY
MODEL 530
4-20 mA LOOP CALIBRATOR
www.teltru.com
4 to 20 mA Loop Functions
•Source and Read 0.000-24.000 mA
•Simulate 2-Wire Transmitters 0.000-24.000mA
•Power 2-Wire Transmitters and Read 0.000-24.000 mA
•Display current in mA or -25.00-125.00% of 4-20 mA
Read Voltage Function
•Read 0.00 to ± 30.00 VDC with 4X over range ability
Full 5 Digit Display
•True ±0.012% of reading accuracy
•Bar graph for quick reference of input and output levels
•High contrast graphic display viewable in all lighting conditions and angles
EZ-Dial™ Knob
•Easily adjust output by 0.001 mA (0.01%) or 0.100 mA (1.00%)
EZ-Check™ Switch with EZ-Step™ Button
•3-position tactile switch with push button for true one-handed calibrations
•Push button for stepping through calibration points
•6 different step sizes
•Hands-free auto step and auto ramp modes
Uses a standard 9V Alkaline Battery
•Superior battery life up to 40 hours under typical continuous usage
•Easy access to battery compartment
240 VAC Tolerant
•Fuse-less protection from accidental misuse
Lightweight and rugged with a solid feel
•Convenient Velcro®hand strap allows for a firm confident grip or
attachment to pipes and ladders.
The Model 530, designed for use in the process control industry, has simple, easy to use controls featuring a large high
contrast display with easy visibility without the need for contrast adjustments. The Model 530 is designed to be a tool with
all the practical functions required to get the job done easily without the confusing extras or reading through a complicated
manual. The Model 530 can source and read current in the process loop and simulate, power and measure 2-wire
transmitters. It can read voltage to 30.00 VDC with over 4X over range ability.
EZ-Dial, EZ-Check, and EZ-Step are trademarks of
Practical Instrument Electronics, Inc.
Velcro is a registered trademark of Velcro Industries B.V.
Hart is a registered trademark of Rosemount Inc.
➤FEATURES:
➤DESCRIPTION:
HART®protocol compatibility mode
User selectable 250O resistor in
series with the output for
compatibility with HART protocol
enabled devices.

MADE IN USA
MODEL 530 - 4-20 milliamp loop calibrator
Order Code: Model 530
Available Options:
AC adaptor 020-0100
Carrying Case 020-0200
Catalog C530904
Tel-Tru Manufacturing Company
408 St. Paul St., Rochester, New York 14605 USA
Phone: [phone] • 800.232.5335 • Fax: [phone] • E-mail: [email protected] • Web: www.teltru.com
➤GENERAL SPECIFICATIONS:
(Unless otherwise indicated all specifications are rated from a nominal
23 °C, 70 % RH for 1 year from calibration)
Operating Temperature -20 to 60 °C (-5 to 140 °F)
Storage Temperature -30 to 60 °C (-22 to 140 °F)
Range
Relative Humidity 10% <RH <90% (0 to 35 °C),
Non-condensing
10% <RH <70% (35 to 60 °C),
Non-condensing
Size 7.00 X 3.30 X 2.21"
(177.8 X 83.8 X 56.1mm)
Weight 12.0 oz (340 grams)
Battery 9V Alkaline
Optional 120 VAC 50/60 Hz AC adaptor
available
Miscellaneous Low battery indication with nominal 1 hour
of operation left
Over-voltage protection to 120 Vrms (rated
for 30 seconds) or 240 Vrms (rated for
15 seconds)
Bar graph display with 1% resolution of
4-20 mA signal scale
High contrast graphic liquid crystal display
with 0.45" (11.4 mm) high digits
➤ORDERING INFORMATION/OPTIONS:
➤WARRANTY:
Our equipment is guaranteed against defective material and workmanship (excluding batteries) for a period of three years from the date of shipment. Claims under
guarantee can be made by returning the equipment prepaid to our factory. The equipment will be repaired, replaced or adjusted at our option. The liability of Tel-Tru
Manufacturing Co. is restricted to that given under our guarantee. No responsibility is accepted for damage, loss or other expense incurred through sale or use of our
equipment. Under no condition shall Tel-Tru Manufacturing Co. be liable for any special, incidental or consequential damage.
➤READ mA SPECIFICATIONS:
Voltage burden <2V at 20 mA
Overload/Current limit 24 mA nominal
protection
Battery life Typical > 40 hours
➤COMMON SPECIFICATIONS FOR ALL
CURRENT MODES:
Ranges 0.000 to 24.000 mA, -25.00 to
125.00% of 4-20 mA
Accuracy <± (0.012% of Reading + 0.004 mA)
Temperature Affect <± 50 ppm/°C of Range
Resolution(s) 0.001 mA and 0.01%
➤SOURCE/POWER AND MEASURE 2-WIRE
TRANSMITTER SPECIFICATIONS:
Loop compliance voltage >24 Volts
Loop drive capability 1200 Ωat 20 mA for entire battery life
Miscellaneous Open loop or out of compliance conditions
are indicated by appropriate error display
Battery life in:
Source mode > 18 hrs at 12 mA typical
(HART disabled)
Power measure > 10 hrs at 12 mA typical
HART protocol mode is a selectable option at
turn on. HART protocol mode places a
250O resistor in series with the output
Selectable EZ-Step(s) for Source Mode/2-Wire
Transmitter Simulation:
In mA mode: 0.001, 0.010, 0.100, 1.000,
4.000 (default), 8.000 mA
% of 4-20 mA mode: 0.01, 0.10, 1.00, 10.00,
25.00 (default), 50.00%
➤2-WIRE TRANSMITTER SIMULATION
SPECIFICATIONS:
Voltage burden <2V at 20 mA
Overload/Current limit 24 mA nominal
protection
Loop voltage limits 2-60 VDC
Miscellaneous Open loop or out of compliance conditions
are indicated by appropriate error display
Battery life > 40 hour typical
Selectable EZ-Step(s) for Source Mode/
2-Wire Transmitter Simulation:
In mA mode: 0.001, 0.010, 0.100, 1.000,
4.000 (default), 8.000 mA
% of 4-20 mA mode: 0.01, 0.10, 1.00, 10.00,
25.00 (default), 50.00%
➤VOLTAGE READ SPECIFICATIONS:
Range 0.00 to 30.00 VDC (with 4X over range)
Accuracy <± (0.1% of Reading ± 0.1 V)
Temperature effect <± 200 ppm/°C of Reading
Resolution 0.01 V
Input resistance >1 MΩ
Battery life > 40 hour typical
Flashing indicator for over range

Model 530
4-20 Milliamp Loop Calibrator
Operating Instructions
408 St. Paul Street, Rochester, NY 14605 Tel: [phone] • Fax: [phone] [e-mail] • www.teltru.com
Tel-Tru Manufacturing Co. Copyright 2004. All rights reserved. 530INS904 11/22/04 1-4
A. Basic Keypad Operations
1
11
1 EZ-Check™ Switch/EZ-Step™ Pushbutton
Slide the switch to select the user stored values for
calibration points. Press the button to adjust the output
by the user defined step size. Press and hold the button
to activate the auto step/ramp mode.
2
22
2
SOURCE/STEP SIZE Button
Press SOURCE to change source modes. These are:
 Source Milliamps
 2-Wire Transmitter Simulate
3
33
3 ON/OFF Button
Press ON/OFF to turn the Model 530 on or off.
4
44
4 UNITS Button
Press UNITS to change how current is
displayed – either in milliamperes or % of 4-20
mA. Voltage is only displayed in Volts.
5
55
5
READ Button
Press READ button to change read modes.
These are:
 Read Milliamps
 Power and Measure 2-Wire Transmitter
 Read Volts


 STORE/CLEAR Button
In any source mode:
Press STORE/CLEAR to save the current
reading in the EZ-Check HI or LO position. The
EZ-Check switch must be set to HI or LO. The
display will flash “STORED” to confirm.
In any read mode:
Press STORE/CLEAR to clear the values saved
in the EZ-Check HI and LO positions. The
display will flash “CLEARED” to confirm.


 EZ-Dial™ Knob
Turn the EZ-Dial knob to adjust the output
level. Press and turn to adjust 100X faster.
B. EZ-Dial Knob
Adjust the output up and down with the EZ-Dial knob. The increment is 0.001 mA (or 0.01% if display
units are % of 4-20 mA.) Press while turning to adjust 100X faster – 0.100 mA (or 1.00%.)
C. EZ-Check Switch
The EZ-Check switch has three positions -- high, set, and low. Its position is shown at the left edge of the
display with “HI” and “LO” indicators. Neither indicator indicates the middle position. Use of the EZ-Check
switch depends on mode.

Model 530 Operating Instructions
408 St. Paul Street, Rochester, NY 14605 Tel: [phone] • Fax: [phone] [e-mail] • www.teltru.com
Tel-Tru Manufacturing Co. Copyright 2004. All rights reserved. 530INS904 11/22/04 2-4
Source Modes:
Slide the EZ-Check switch to the HI and LO positions to recall the settings stored in those positions.
While in the HI and LO positions, dial the EZ-Dial knob to change the display. Press
STORE/CLEAR to save new settings in the HI and LO positions. The display will flash “STORED”
to confirm.
Hint: For faster calibrations, the position of the switch can be felt. This feature allows continuous
monitoring of the device being calibrated without looking back at the Model 530 display. This is
also useful in poor lighting or under difficult operating conditions.
Read Modes:
In read modes, the Model 530 calibrator records the maximum and minimum readings observed in
each mode. Slide the EZ-Check switch to the HI and LO positions to display the readings. Press
STORE/CLEAR to clear the readings. The display will flash “CLEARED” to confirm.
By default, the Model 530 has EZ-Check HI/LO Readings OFF. Refer to Model 530 Configuration,
section H.
D. EZ-Step Pushbutton
The EZ-Step pushbutton is a feature only in source modes.
Press and hold the EZ-Step pushbutton for less than one second to cause the output to step up or down
by the EZ-Step size. The EZ-Step direction is indicated on the display ( or ). Press the EZ-Dial
knob to change the step direction.
Press the EZ-Step pushbutton for more than one second to activate auto step/ramp mode. The Model 530
will automatically step by the EZ-Step size. Press the EZ-Step pushbutton again to deactivate auto
step/ramp mode.
Stepping and auto step/ramp limits are defined by the EZ-Check HI and LO settings. The step direction
changes when a limit is reached.
By default, the Model 530 has EZ-Step OFF. Refer to Model 530 Configuration, section H.
E. EZ-Step Size and Direction
To Change the EZ-Step Size:
1. Press and hold the SOURCE/STEP SIZE button for more than ¾ of a second.
2. The display will indicate “EZ-STEP SIZE”.
3. Turn the EZ-Dial knob to select other step sizes. The choices are:
mA display - 0.001, 0.010, 0.100, 1.000, 4.000, 8.000
% display - 0.01, 0.10, 1.00, 10.00, 25.00, 50.00
4. Press the SOURCE/STEP SIZE button again return to the normal display.
Note: If the EZ-Step option is turned off, the display will indicate “EZ-STEP OFF”. Refer to Model
530 Configuration, section H.
To Change the EZ-Step
Direction:
1. Press the EZ-Dial knob.
2. The display will change to show the EZ-Step
direction selected ( or ).

Model 530 Operating Instructions
408 St. Paul Street, Rochester, NY 14605 Tel: [phone] • Fax: [phone] [e-mail] • www.teltru.com
Tel-Tru Manufacturing Co. Copyright 2004. All rights reserved. 530INS904 11/22/04 3-4
F. Auto Step/Ramp
Auto step/ramp times are given in Table 1. In step modes (EZ-Step sizes 8, 4, and 1 mA or 50, 25 and
10%) the output will change in discrete steps. In ramp modes, the output is approximately continuous.
Table 1 assumes the default EZ-Check LO/HI of 4/20 mA and scales ratiometrically with the EZ-Check
span. Soak Time does not change with EZ-Check span.
The Model 530 will detect high loop resistance/low supply in step modes. In ramp modes, these error
conditions are not detected.
Table 1
Auto EZ-Step Size Step Time Ramp Time
(4-20 mA or 0-100 %)
Soak Time
8.000 mA 50.00% 10 seconds (30 seconds) 20 seconds
4.000 mA 25.00% 10 seconds (50 seconds) 20 seconds
1.00 mA 1.9 seconds (34 seconds) 3.8 seconds
Step
10.00% 1.8 seconds (21 seconds) 3.6 seconds
1.00% 20 seconds
0.10% 25 seconds
0.100 mA 32 seconds
0.010 mA 40 seconds
0.01% 83 seconds
Ramp
0.001 mA 134 seconds
G. Quick Reference Bar Graph
The Quick Reference Bar Graph indicates the input and output level to the Model 530 in % of 4-20 mA
with 1% resolution. If the input or output signal is outside the normal operating range of the Model 530
the Quick Reference Bar Graph is replaced by an error message (see section I for errors.)
H. Model 530 Configuration
Auto Off - ON (default)/OFF
If Auto Off is ON, the unit will turn off after 30 minutes to save battery life, if there is no user activity. If
Auto Off is OFF the unit will stay on until it is turned off from the keypad. This is typically useful for
manual loading or continuous use.
EZ-Step - ON/OFF (default)
If EZ-Step is ON the step size is adjustable as described in the instructions. If EZ-Step is OFF the EZ-Step
pushbutton will be disabled and the step direction indicator will not be displayed.
HART
®
Compatibility Mode - ON/OFF (default)
The Model 530 has a HART
Compatibility Mode. This mode is useful when the devices being powered
communicate using the HART protocol. In this mode the Model 530 connects a 250 Ωload resistor in
series with the output in both Source and Power Measure 2-Wire transmitter modes. This eliminates the
requirement of an external 250 Ωload resistor. This resistor is typically shown in connection diagrams and
manuals for HART devices.
If HART Compatibility Mode is ON, a 250 Ωload resistor is automatically switched in series with the output
in Source and Power Measure 2-Wire Transmitter modes. The output compliance with HART Compatibility
Mode ON is 950 Ωat 20 mA.

Model 530 Operating Instructions
408 St. Paul Street, Rochester, NY 14605 Tel: [phone] • Fax: [phone] [e-mail] • www.teltru.com
Tel-Tru Manufacturing Co. Copyright 2004. All rights reserved. 530INS904 11/22/04 4-4
If HART Compatibility Mode is OFF there is no 250 Ωload resistor in series with the output. This will
increase the output compliance voltage to drive 1200 Ωat 20 mA.
EZ-Check HI/LO Readings ON/OFF (default)
If the EZ-Check HI/LO Readings option is ON, the highest and lowest readings will automatically be saved
in the HI and LO EZ-Check positions.
If this option is OFF the HI and LO positions will show the current reading.
Factory Reset ON/OFF (default)
If Factory Reset is ON, the unit will restore all factory defaults when the Model 530 is turned OFF and back
ON. This will reset any changes made in the Model 530 Configuration options, returning the unit to its
simplest factory configuration.
Instructions for Enabling and Disabling the Configuration options in the Model 530
1. Turn the Model 530 on.
2. Press the EZ-Dial knob while the “PRESS EZ-DIAL KNOB FOR CONFIGURATION” message is
displayed.
3. Select options by turning the EZ-Dial knob until the arrow points to the desired option.
4. The option can be enabled or disabled by tapping the EZ-Dial knob.
5. Turning the Model 530 off to exit configuration.
I. Error Conditions
Source Milliamps:
“HIGH Ω” flashes in place of bar graph
Power Measure:
“CURRENT LIMITED” flashes in place of bar graph
2-Wire Transmitter Simulate:
“LOW SUPPLY” flashes in place of bar graph
Read Milliamps:
“CURRENT LIMITED” flashes in place of bar graph
Read Volts:
“OVERRANGE” flashes in place of bar graph
EZ-Check, EZ-Step and EZ-Dial are trademarks of Practical Instrument Electronics, Inc.
Hart is a registered trademark of Rosemount Inc.