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Two Stage Batch Controller/Ratemeter
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- Displays Rate, Batch Total, and Grand Total
- Separate K Factors for Rate and Total
- 12 to 24V Output
- Optional 16-Point Linearization
The DP-F31 ratemeter/totalizer accepts 3 to 30 Vdc pulses, dry-contact closure, voltage, or milliamp inputs, and provides 2-stage SPDT relay outputs for batch control. The display is fully scalable for engineering units and may be toggled between batch total, rate, and grand total. The linearization option allows the user to select up to 16 different K factors over the input range for accurate indication of non-linear signals.
Other features include 12 to 24 Vdc output for powering up flowmeters pulsed (0.1 to 9.9 s) or maintained outputs input filtering for dry-contact closure (such as reed relays) local/remote reset excitation for open-collector or mechanical contacts user-programmable auto-reset of batch total (repeat cycles, 10 Hz max) security lockout to prevent unauthorized changes factored pulse output and analog output for rate or total (analog output not available with square root -SQRT option).
The DP-F30 series indicates rate to 5½-digits and total to 8-digits, with program and count data stored for up to 10 years if power is lost.
SPECIFICATIONS
Input Power: 110 Vac ±15% or 12 to 27 Vdc std. 220 Vac ±15% optional
Current: Max 250 mA DC or 3.2 VA
Output Power: On AC-powered units
only: +24 or +12 Vdc @ 100 mA unregulated (±5% worst case)
Pulse Inputs:
DP-F31: 0 to 1 Vdc (low), 3 to 30 Vdc (high), 20 kHz max (min on/off 35 ìs)
DP-F32: 4.7 kΩ pull up to +5 Vdc on input for pulsing with contact to ground or NPN collector transistor
Factored Output: Min on/off: 0.013 ms open collector sinks 100 mA max from 1 to 30 Vdc max max factored count speed is 20 kHz
Temperature:
Operating: 0 to 54°C (32 to 130°F)
Storage: -40 to 93°C (-40 to 200°F)
Accuracy: ±0.5% FS
Relay Outputs: 2 SPDT contacts rated for 10 A at 120/240 Vac or 28 Vdc
4 to 20 mA Output: ±0.5% FS accuracy requires 3 to 24 Vdc supply voltage, non-inductive
Other features include 12 to 24 Vdc output for powering up flowmeters pulsed (0.1 to 9.9 s) or maintained outputs input filtering for dry-contact closure (such as reed relays) local/remote reset excitation for open-collector or mechanical contacts user-programmable auto-reset of batch total (repeat cycles, 10 Hz max) security lockout to prevent unauthorized changes factored pulse output and analog output for rate or total (analog output not available with square root -SQRT option).
The DP-F30 series indicates rate to 5½-digits and total to 8-digits, with program and count data stored for up to 10 years if power is lost.
SPECIFICATIONS
Input Power: 110 Vac ±15% or 12 to 27 Vdc std. 220 Vac ±15% optional
Current: Max 250 mA DC or 3.2 VA
Output Power: On AC-powered units
only: +24 or +12 Vdc @ 100 mA unregulated (±5% worst case)
Pulse Inputs:
DP-F31: 0 to 1 Vdc (low), 3 to 30 Vdc (high), 20 kHz max (min on/off 35 ìs)
DP-F32: 4.7 kΩ pull up to +5 Vdc on input for pulsing with contact to ground or NPN collector transistor
Factored Output: Min on/off: 0.013 ms open collector sinks 100 mA max from 1 to 30 Vdc max max factored count speed is 20 kHz
Temperature:
Operating: 0 to 54°C (32 to 130°F)
Storage: -40 to 93°C (-40 to 200°F)
Accuracy: ±0.5% FS
Relay Outputs: 2 SPDT contacts rated for 10 A at 120/240 Vac or 28 Vdc
4 to 20 mA Output: ±0.5% FS accuracy requires 3 to 24 Vdc supply voltage, non-inductive
CE Approved