OPTO 22 - SNAP-AIR400K-8 _ SNAP 8-Ch Analog Resistor/thermistor Input, 400 K Ohms

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OPTO 22

OPTO 22 - SNAP-AIR400K-8 _ SNAP 8-Ch Analog Resistor/thermistor Input, 400 K Ohms

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$455.00

Brand

OPTO 22

SKU:

SNAP-AIR400K-8

Description
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OPTO 22 - SNAP-AIR400K-8 _ SNAP 8-Ch Analog Resistor/thermistor Input, 400 K Ohms

Quick Specs:

SNAP 8-Ch Analog Resistor/thermistor Input
400 K Ohms

The SNAP-AIR400K-8 module has eight channels of analog to digital conversion that convert resistance to temperature or to ohms. The module is ideal for NTC thermisters commonly used in HVAC, refrigeration, and process control applications. It may also be used with PTC thermisters in resistance sensing applications.

The SNAP-AIR400K-8 reads variable resistance type transducers, and it has 12 resistance input ranges from 500 Ohms to 400 K Ohms, plus Autorange. Range dependent resolution is from 20 milliohms to 16 Ohms. SNAP PAC brains and PAC Control provide direct temperature readings for four popular thermistors using the Steinhart-Hart equation. You may also enter custom coefficients for unsupported thermistor curves.

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 Logix PLC system, such as ControlLogix, MicroLogix, or CompactLogix.

Compatibility: This module can be used with SNAP PAC brains and R-series controllers. Minimum requirements: brain or controller firmware R9.3c and PAC Project R9.3002 (PAC Control R9.3b).

Also see the 4-channel SNAP-AIR40K-4.

Build your system in the SNAP PAC Configurator.

Specifications:

Input Ranges	400 K, 200 K, 100 K, 50 K, 40 K, 20 K, 10 K, 5 K , 4 K, 2 K, 1 K, 500 Ohms, and Autorange
Resolution	Resolution 16 Ohm 8 Ohm 4 Ohm 2 Ohm	Range 0 to 400 kOhms 0 to 200 kOhms 0 to 100 kOhms 0 to 50 kOhms	Resolution 1.6 Ohm 0.8 Ohm 0.4 Ohm 0.2 Ohm	Range 0 to 40 kOhms 0 to 20 kOhms 0 to 10 kOhms 0 to 5 kOhms	Resolution 0.16 Ohm 0.08 Ohm 0.04 Ohm 0.02 Ohm	Range 0 to 4 kOhms 0 to 2 kOhms 0 to 1 kOhms 0 to 500 Ohms
Accuracy (Ohms @ Range)	400 Ohms @ 400 K 200 Ohms @ 200 K 100 Ohms @ 100 K 50 Ohms @ 50 K		40 Ohms @ 40 K 20 Ohms @ 20 K 10 Ohms @ 10 K 5 Ohms @ 5 K		4 Ohms @ 4 K 2 Ohms @ 2 K 1 Ohms @ 1 K 0.5 Ohms @ 500
Data Freshness	1.61 seconds maximum
DSP Notch Filter	20 Hz (- 3DB = 5.24 Hz)
Excitation Current Nominal (Range & Load Watts Dissipation)	9uA (50 K - 4.1 uW), (100 K - 8.1 uW), (200 K - 16 uW), (400 K - 32 uW) 90uA (5 K - 40 uW), (10 K - 81 uW), (20 K - 160 uW), (40 K - 320 uW) 200uA (500 K - 20 uW), (1 K - 40 uW), (2 K - 80 uW), (4 K - 160 uW)
Autorange Step Time	1.6 seconds to next higher or lower range >= 10 seconds for a 500 Ohms to 400 K Ohms step change
Autorange Ohms Hysteresis	Ranges Ohms Open > 440K 20K between 200K & 400K 10K between 100K & 200K 5K between 50K & 100K 19K between 40K & 50K 2K between 20K & 40K 1K between 10K & 20K 500 between 5K & 10K 1.9K between 4K & 5K 200 between 2K & 4K 100 between 1K & 2K 50 between 500 & 1K
DC Common Mode Rejection	>-120 dB
AC Common Mode Rejection	>-120 dB @ 60 Hz
Open Resistor Indicator	Channel resistance = 999,999.999 Ohms
PAC Control Reads	temperature reading or -32768 Ohms if over or under range
Maximum Operating Common Mode Voltage (Field Term to Logic Connector)	500 VDC or peak VAC
Drift Gain Tempco Offset Tempco	30 PPM / °C 15 PPM / °C
Power Requirements	5 VDC (±0.15 ) @ 190 mA
Operating Temperature	-20 °C to 70 °C
Storage Temperature	-40 °C to 85 °C
Humidity	5-95%, non-condensing
Torque, hold-down screws	4 in-lb (0.45 N-m)
Torque, connector screws	5.26 in-lb (0.6 N-m)
Agency Approvals	UL, CE; UKCA
Warranty	Lifetime

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