|
These
Digital Panel Meter (DPM) models provide highly accurate, stable, and repeatable temperature
indication for signals from Type J, K, T, E, N, R, and S thermocouples (see
Specifications, below).
TC
range and resolution (1° or 0.1°) are selectable from the front panel or
via special commands issued over the optional serial
interface. Data display in units of degrees Kelvin or Rankine
can be selected by offsetting the Celsius or Fahrenheit range,
respectively.
Cold
junction compensation automatically corrects for temperature variations at
the thermocouple reference junction of the meter. Open sensor
indication is standard, and may be set to indicate either upscale or
downscale.
All
ranges for all temperature sensor types are digitally calibrated at the
factory to NIST standards, thus eliminating the need to recalibrate in the
field for potentiometer-related drift errors.
As
with all 2000 Series DPM's, the peak value of the input signal is
automatically captured and may be displayed via front-panel push
button or a control signal received at the rear connector (since the last
meter reset). Data readings and outputs can be separately selected
to be either filtered or unfiltered.
With
the optional Analog Output Board, these
meters can serve as superb, isolated 4-20 mA transmitters. The
analog output is scaled to the display, which is linearized to °C or °F
and is exceptionally accurate. The analog output tracks the high
read rate of the meter (up to 56 readings per second at 60-Hz
power). Fast update rates are beneficial in many closed-loop and PID
control applications.
With
the optional Dual Contact or Solid-State
Relay Board, a temperature meter can serve as an extremely fast and
accurate ON/OFF controller for closed-loop temperature control, or as a
supervisory process monitor, providing alarms or shutoffs when the process
exceeds normal limits.
The
following figure summarizes the optional output, control-relay, and
serial-interface functions applicable to all thermocouple meters.

Thermocouple
Meter Specifications [Top
]
(Click
here for 2000 Series General Specifications)
|
|
Model
Number
|
TC Type
|
Range
|
Conformity
Error
at 25° C
|
|
2110-1
|
J
|
-210° C to +760° C
|
0.01% of full scale ±
0.09° C
|
|
2110-2
|
J
|
-347° F to +1400° F
|
0.01% of full scale ±
0.16° F
|
|
2111-1
|
K
|
-244° C to +1372° C
|
0.01% of full scale ±
0.10° C
|
|
2111-2
|
K
|
-408° F to +2501° F
|
0.01% of full scale ±
0.17° F
|
|
2112-1
|
T
|
0° C to +400° C
-257° C to +0° C
|
0.01% of full scale ±
0.03° C
0.01% of full scale ± 0.20° C
|
|
2112-2
|
T
|
+32° F to +752° F
-430° F to +32° F
|
0.01% of full scale ±
0.05° F
0.01% of full scale ± 0.36° F
|
|
2113-1
|
E
|
-240° C to +1000° C
|
0.01% of full scale ±
0.18° C
|
|
2113-2
|
E
|
-400° F to +1830° F
|
0.01% of full scale ±
0.32° F
|
|
2114-1
|
N
|
-244° C to +1372° C
|
0.01% of full scale ±
0.10° C
|
|
2114-2
|
N
|
-408° F to +2501° F
|
0.01% of full scale ±
0.17° F
|
|
2115-1
|
S
|
-46° C to +1768° C
|
0.01% of full scale ±
0.12° C
|
|
2115-2
|
S
|
-51° F to +3213° F
|
0.01% of full scale ±
0.22° F
|
|
2116-1
|
R
|
-45° C to +1768° C
|
0.01% of full scale ±
0.17° C
|
|
2116-2
|
R
|
-49° F to +3214° F
|
0.01% of full scale ±
0.31° F
|
|
All
Thermocouple Models
|
|
Calibration
|
NIST
Monograph 125 (IPTS-68)
|
|
Input
Resistance |
1 GΩ |
|
Input
Current |
100 pA |
|
Max.
Lead Resistance for Rated Accuracy |
1 kΩ |
|
Span
Temperature Coefficient |
±0.003% of
reading/°C |
|
Reference
Junction Temperature Coefficient |
±0.02 deg/deg |
|
Overvoltage
Protection |
125 VAC |
|
Normal-Mode
Rejection at 50/60 Hz |
80 dB plus
selectable digital filter from 80 ms to 9.6 s time constant |
|
Common-Mode
Rejection from DC to 60 Hz |
120 dB with 500
Ω imbalance |
|
Common-Mode
Voltage from DC to 60 Hz |
250 VAC from
power and earth ground |
|
Open
Sensor Indication |
Flashes full-scale |
|