SNAP-AIR40K-4 OPTO 22, SNAP-AIR40K-4 Datasheet - Page 2

• Manufacturer Part Number: SNAP-AIR40K-4
• Description: ANALOG THERMISTOR INPUT MODULE
• Manufacturer: OPTO 22
• Type: Inputr

Specifications of SNAP-AIR40K-4

• Accessory Type: Thermistor
• Leaded Process Compatible: No
• Peak Reflow Compatible (260 C): No
• No. Of Analog Inputs: 4
• Brand/series: SNAP Series
• Connection To Host: Backplane
• Current, Input: 190 mA
• Dimensions: 82.55mmL×18.29mmW×90.17mmH
• Input: 0 to 40000/20000/10000/5000 Ohms
• Input Type: Analog
• Input, Range: 0 to 40000 Ohms
• Mounting Type: PCB
• Number Of Channels: 4
• Number Of Inputs: 4 Channels
• Primary Type: Control
• Resistance, Input: 0 to 40 Kiloohms
• Special Features: Transformer Isolation, Optical Isolation, Resistor/Thermistor Input
• Standards: UL, CSA, CE Certified
• Temperature, Operating: 0 to +70 °C
• Voltage, Isolation: 1500 V
• Voltage, Supply: 5 VDC
• For Use With: SNAP PAC System
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

SNAP Analog Input Modules
Thermistor Input Module 0–40 K, 0–20 K, 0–10 K, or 0–5 K Ohm
SNAP-AIR40K-4
IMPORTANT: The mounting rack connector has 24 pins; the module
connector has 20 pins. The extra pins on the mounting rack connector
prevent misalignment of the module during installation.
Description
The SNAP-AIR40K-4 module provides four channels of analog to
digital conversion, ideal for thermistors used in HVAC applications
or for reading the resistance of potentiometer input. The module
can be used only with Ethernet-based SNAP brains and on-the-rack
controllers.
The default input range is 0 to 40 K Ohms. The module can also be
configured for 0 to 20 K, 0 to 10 K, or 0 to 5 K Ohms.
NOTE: Resistance probes must be isolated from each other.
Specifications
SNAP-AIR40K-4
Input Range
Resolution
Input Filtering
DC Common Mode Rejec-
tion
AC Common Mode Rejec-
tion
Maximum Operating Com-
mon Mode Voltage
Accuracy
DRIFT: Gain Temperature
Coefficient
DRIFT: Offset Temperature
Coefficient
Isolation
Power Requirements
Operating Temperature
Storage Temperature
Part Number
Four-channel analog resistor/thermistor
input, 40 K ohms, 20 K ohms, 10 K ohms, or
5 K ohms
1500 V
0 °C to 70 °C
-25 °C to 85 °C
0 to 40,000 Ohms
0 to 20,000 Ohms
0 to 10,000 Ohms
0 to 5,000 Ohms
1.6 Ohm @ 40 K Ohms
0.8 Ohm @ 20 K Ohms
0.4 Ohm @ 10 K Ohms
0.2 Ohm @ 5 K Ohms
-3 dB @ 3.2 Hz
>-120 dB
>-120 dB @ 60 Hz
250 V
0.1% ± 40 Ohms @ 40 K Ohms
0.1% ± 20 Ohms @ 20 K Ohms
0.1% ± 10 Ohms @ 10 K Ohms
0.1% ± 5 Ohms @ 5 K Ohms
30 PPM/ °C
15 PPM/ °C
5 VDC (±0.15 ) @ 190 mA
Description
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