|
SC5000
THERMOCOUPLE AND RTD INPUT
TWO WIRE TRANSMITTER
FEATURES
 | Provides DC Output Proportional to a Thermocouple or Platinum RTD Input |
| Linearized for J, K, R, S, T, E, & N Thermocouples and Platinum RTDs |
| 2, 3, or 4-Wire RTD Inputs |
| Full Galvanic Isolation |
| Microprocessor Based |
| Field Rangeable |
| PC Configurable Via RS232 Port |
| Test Points for Loop Current Monitoring Without Breaking Loop Circuit |
| Upscale or Downscale Burnout Indication |
| Intrinsically Safe Design - FM Approved |
| Permanent Warranty |
DESCRIPTION
The SC5000 provides a DC output current (4/20 mADC) proportional to the
temperature as measured with a thermocouple or RTD, using microprocessor based,
digital circuitry in a "hockey puck" style case. The output can be
linearized for both thermocouples and platinum RTDs.
The input and output are isolated.
The user may select thermocouple types J, K, R, S, T, E, or N, or 100 ohm Pt RTD
as the input sensor. RTD connections for 2-wire, 3-wire and 4-wire sensors are
provided. The transmitter compensates for the lead wire resistance in the 3-wire
configuration and provides true measurement of the resistive element without
lead wire error in the 4-wire configuration.
Linearization is accomplished via a 256 point look-up table program.
Configuration is performed using a Personal Computer and the CIK005A.
SPECIFICATIONS
|
INPUT
TC types: J, K, R, S, T, E, & N
Spans: User configurable from 5mv minimum to maximum usable
range
Linearization:
| Type
|
Maximum Linearized Range:
|
| J |
-210°C to +
760°C
|
| K |
-250°C to
+1372°C
|
| R |
- 50°C to
+1768°C
|
| S |
- 50°C to +1768°C
|
| T |
-270°C to +
400°C
|
| E |
-260°C to
+1000°C
|
| N |
-250°C to +1300°C
|
Reference Junction Compensation Accuracy
± .25°C
Impedance
> 1 megohm
Span
Adjustment
Continuous from 6.25% to 100% of T/C Range.
(5 mv minimum
span)
RTD
100 ohm Platinum,
.00385 and .00392
alpha
2, 3, or 4-wire connection Maximum Usable
Range
-200°C to +850°C
Minimum Usable
Range
45°C
Zero Adjustment
Continuous from 0% to 90% of temperature sensor
range
ISOLATION, OUTPUT/INPUT
Breakdown: >1000
volts
RMS sine wave
Resistance: >500 megohms
|
|
OUTPUT
Range:
4/20 mADC
Modes (User Configured)
Normal / Reverse acting
Linear / Non-linear
Burnout Indication
(User Configured)
Upscale / Downscale
Linearity
± 0.25°C of NIST Tables
Accuracy
±
0.05% of span
Repeatability
± 0.01% of span
Input to Output Linearity
± 0.01% of span
Response Time
< 1 second
Ripple (peak to peak)
< 0.1% of full scale
Power Supply Effect
< 0.001% of span / Volt
Ambient Temperature Effect
± 0.005% of span /°C
Long Term Stability
± 0.0005% of span/6 mo.
POWER
10-36 VDC, polarity protected
(current limited to 30 mADC max.)
OPERATING TEMPERATURE
-40°C to
80°C
-40°F to 176°F
RFI IMMUNITY
Filtering and Shielding
to reject RFI Interferance
|
ORDERING INFORMATION
| SC5000, |
(
) |
, |
(
) |
, |
(
) |
, |
(
) |
, |
(
) |
|
|
|
| |
|
|
| |
|
|
| |
|
|
| |
|
| |
4/20 - 4/20 mA
Output
20/4
- 20/4 mA Output |
|
|
| |
|
|
| |
|
|
| |
|
| |
L - Linearized
N - Non-linearized |
|
|
|
| |
|
|
|
| |
|
| |
Burnout
US -
Upscale on Open Sensor
DS -
Downscale on Open Sensor |
|
|
| |
|
| |
Temperature Range
(specify°F or°C) |
|
| |
Sensor Type
J, K, R, S, T, E, or N - Thermocouple
3850 or 0392, 2W - 2-wire RTD
3850 or 0392, 3W - 3-wire RTD
3850 or 0392, 4W - 4-wire RTD |
Example: SC5000,J,0/500F,US,L,4/20
|
