Martel T130 Operating Instructions

Figures 2 and 3 illustrate the proper connection
procedure.
Figure 2
Two-wire Transmitter
with three-wire RTD
Label or silkscreen
showing RTD
connection points.
The RTD sensor
mA RTD Top View
must be
– + of Model T130
disconnected
during calibration. 1 3 5
2 4
(+) (–)
4-20mA
output
(+) (–)
Excitation Current
Flows from transmitter into calibrator
Figure 3
Two-wire Transmitter
with four-wire RTD
Label or silkscreen
showing RTD
connection points.
The RTD sensor RTD Top View
mA
must be – + of Model T130
disconnected
1 3 5
during calibration.
2 4
(–)
(+)
4-20mA
output
(+) (–)
Excitation Current
Flows from transmitter into calibrator
In both of these examples a jumper(s) must be
made at the device under test for the circuit to
work properly. The proper connections for these
jumpers are generally shown by the label or
silkscreen on the device under test. If proper
RTD connections are not obvious refer to
instruction manual for the device under test.
5

2. RTD Read Mode

The T130 can also be used to read an RTD
probe or similar RTD sensor. The T130 only
works in the 4 wire mode; however, 2 and 3
wire RTD's can be read as long as multiple
connections are made at the RTD loads. Refer
to the label on the rear of the T130 for connec-
tion information.

SPECIFICATIONS

Ranges PT385 -200 to 850°C
PT392 -200 to 850°C
Ni120 -80 to 320°C
Jis.392 -200 to 850°C
Resolution 1°C or 1°F
Accuracy ±1°C
Excitation Current Range
(Source Mode) 0.125 to 2.0mA continuous
Operating Temp. 0 to 50°C
Storage Temp. -20 to 60°C
Temperature Coef. ±.01% F.S./°C
Power 9V alkaline battery
1
Case Size 1.43" x 3.15" x 5.7"
Weight 12 oz.
Notes: 1 A low battery indication is given at 5.5 volts.
6

MAINTENANCE

Generally, with normal usage, this calibrator
should hold its rated specifications for at least
12 months. Beyond this, it should remain within
1.5X of its specification over its useful life,
provided it is not abused or tampered with. If
after the stated warranty period, the device falls
out of calibration, it can be returned to Martel
for re-calibration. Please call 1-800-821-0023
for pricing and return information.

WARRANTY

Martel warrants all products against material
defects and workmanship for a period of twelve
(12) months after the date of shipment.
Problems or defects that arise from misuse or
abuse of the instrument are not covered. If any
product is to be returned, a "Return Material
Authorization" number must be obtained by
calling our Customer Service Department at
1-800-821-0023.
P.O. Box 897
Windham, NH 03087
1-800-821-0023
Tuff Tools
Model T130
Hand-held
RTD Calibrator

OPERATING INSTRUCTIONS