Opto 22
43044 Business Park Drive, Temecula, CA 92590 USA
Local & outside the USA:(951) 695-3000
Toll-Free within the USA:(800) 321-6786
Fax: (951) 695-3095
Email: sales@opto22.com
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The SNAP-AIRTD-10 provides two channels of analog temperature input. Nominal input range is -180 to +260 degrees C. Although the two channels are not isolated from each other, the module is transformer isolated and optically isolated from other modules and devices. Modules are factory calibrated.
Part of the SNAP PAC System, the module mounts on a SNAP PAC rack with a SNAP PAC brain or rack-mounted controller. Analog, digital, and serial I/O modules can all be on the same rack. Such an I/O unit is also well suited for PC-based control or for use as intelligent remote I/O for an Allen-Bradley RSLogix PLC system, such as ControlLogix, MicroLogix, or CompactLogix.
The SNAP-AIRTD-10 uses 10 ohm copper inputs. For other similar modules, see the SNAP-AIRTD (100 ohm platinum) and the SNAP-AIRTD-1K (1000 ohm platinum).
Build your system in the SNAP I/O Configurator.
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SNAP-AIRTD-1K
|
SNAP-AIRTD
|
SNAP-AIRTD-10
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3-wire RTD input
|
1000 ohm platinum @ 0
°C alpha= 0.00385
1000 ohm nickel @ 0 °C
alpha= 0.00618
1000 ohm nickel @ 70 °C
alpha= 0.00637
|
100 ohm platinum; alpha= 0.00385
100 ohm nickel, -60 to 250
°C
120 ohm nickel, -80 to 260
°C
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10 ohm copper; alpha= 0.00428
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Input Temperature Range
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-200 °C to 850 °C
(-328° to +1,582° F)
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-200 °C to 850 °C
(-328° to +1,582° F)
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-180 °C to 260 °C
(-292° to +500° F)
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Input Range
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0 to 4000 ohms
|
0 to 400 ohms
|
0 to 25 ohms
|
Over-Range Limit
|
to 4400 ohms
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to 440 ohms
|
to 27.5 ohms
|
Resolution (average)
|
0.042 °C (0.16 ohms)
|
0.042 °C (0.016
ohms)
|
0.026 °C (0.001
ohms)
|
Input Filtering
|
-3 dB @ 0.1 Hz
|
-3 dB @ 0.1 Hz
|
-3 dB @ 100 Hz
|
Data Freshness (Max)
|
100 ms
|
100 ms
|
168 ms
|
Lead Compensation
|
Automatic when used with
SNAP brains
|
Automatic when used with
SNAP brains
|
Automatic when used with
SNAP PAC brains
|
DC Common Mode Rejection
|
>-120 dB
|
>-120 dB
|
>-120 dB
|
AC Common Mode Rejection
|
>-120 dB at 60 Hz
|
>-120 dB at 60 Hz
|
>-120 dB at 60 Hz
|
Excitation (typical)
|
0.256 mA constant current
|
1.25 mA constant current
|
5.4 mA constant current
|
Maximum Lead Resistance
|
>40 ohms single wire
(all leads to be equal resistance)
|
>40 ohms single wire
(all leads to be equal resistance)
|
>15 ohms single wire
(all leads to be equal resistance)
|
Maximum Fault Voltage
at Input
(between any 2 field wires)
|
±15 V
|
±15 V
|
±15 V
|
Maximum Operating Common
Mode Voltage
|
250 V
|
250 V
|
250 V
|
Accuracy
From factory
After setting gain and offset
|
0.8 °C
0.6 °C
|
0.8 °C
0.6 °C
|
0.6 °C
0.5 °C
|
Isolation
|
1500 V
|
1500 V
|
1500 V
|
Power Requirements
|
5 VDC (±0.15) @
190 mA
|
5 VDC (±0.15) @
190 mA
|
5 VDC (±0.15) @
190 mA
|
Operating Temperature
|
0 °C to 70 °C
|
0 °C to 70 °C
|
0 °C to 70 °C
|
Storage Temperature
|
-25 °C to 85 °C
|
-25 °C to 85 °C
|
-25 °C to 85 °C
|
Torque, hold-down screws
|
4 in-lb (0.45 N-m)
|
4 in-lb (0.45 N-m)
|
4 in-lb (0.45 N-m)
|
Torque, connector screws
|
5.26 in-lb (0.6 N-m)
|
5.26 in-lb (0.6 N-m)
|
5.26 in-lb (0.6 N-m)
|
Agency Approvals
|
CE, RoHS, DFARS
|
UL, FM, CE, RoHS, DFARS
|
CE, RoHS, DFARS
|
Warranty
|
Lifetime
|
Lifetime
|
Lifetime
|
| 1065 |
SNAP I/O analog input modules are part of Opto 22's SNAP PAC System. This document includes descriptions, specifications, and wiring and dimensional diagrams for most analog input modules.
For analog modules with channel-to-channel isolation, see form #1182.
|
| 1569 |
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| 1767 |
|
| 1767C |
This document is written in Chinese.
This white paper describes various temperature sensors such as RTDs, thermocouples, ICTDs, thermistors, and infrared sensors, and the Opto 22 solutions for using them.
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| 1926 |
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