Precision Digital PD6730X - Manual (Page 11)

PD6730X Vantageview Super Snooper Modbus Scanner Instruction Manual
11
PARAMETER
SELECTION Parameter 1 (PAR1), parameter 2 (PAR2), and parameter 3 (PAR3) selectable
as: Modbus PV1-16, math channel C1-4, pulse input rate, total, grand total, or
any math function.
PARAMETER
NESTED MATH Defining parameter 1 or 2 as a math function will prompt for level 2 parameter 1
(L2P1), level 2 parameter 2 (L2P2), and/or level 2 parameter 3 (L2P3). Level 2
parameters function identically as parameter 1 and 2 for nested math functions.
Pulse Input
PULSE/
TRANSISTOR/
CONTACT CLOSURE
INPUT Field selectable; Sourcing or sinking pulse or square wave
0-5 V, 0-12 V, or 0-24 V; TTL; NPN or PNP transistor;
Open collector 100 kΩ pull-up to 3 V;
Switch contact 100 kΩ pull-up to 3 V;
PNP transistor 100 kΩ pull-down to ground (COM)
Active input 100 kΩ to battery level, 10 kΩ to power
Maximum Frequency: 64 kHz
Minimum Pulse Width: 5 µs
Threshold Setting
Low (V) High (V)
Normal 1.2 2.0
Low 0.2 1.2
OPTO-ISOLATED
INPUT Sourcing pulse or square wave 0-5 V, 0-12 V, or 0-24 V; Logic High: 2-24 V,
Logic Low: < 1 V
Maximum Frequency: 20 kHz
Minimum Pulse Width: 20 µs
Input Current: 1 mA @ 5 V, 2.5 mA @ 12 V, 5 mA @ 24 V
LOW VOLTAGE MAG
PICKUP INPUT Sensitivity: 20 mVp-p to 24 Vp-p
Maximum Frequency: 6 kHz
MINIMUM INPUT
FREQUENCY 0.0001 Hz. Minimum frequency is dependent on high gate setting (rate display).
INPUT
IMPEDANCE Pulse input: Greater than 75 k  @ 1 kHz.
Open collector/switch input: 100 k  pull-up to 3 V.
ACCURACY ±0.03% of calibrated span ±1 count
PULSE INPUT
RECALIBRATION All ranges are calibrated at the factory to read frequency in Hz. No recalibration
required.
TEMPERATURE
DRIFT Rate display is not affected by changes in temperature.
LOW-FLOW CUTOFF 0-99,999 (0 disables cutoff function)
DECIMAL POINT Up to four decimal places or none:
4.4444
, 33.333, 222.22, 1111.1, or 00000
CALIBRATION May be calibrated using K-Factor, scale without signal source, or by applying an
external calibration signal.
K-FACTOR Field programmable K-Factor converts input pulses to rate in engineering units.
May be programmed from 0.000001 to 9,999,999 pulses/unit.
CALIBRATION
RANGE Input 1 signal must be ≥ 1 Hz; input 2 signal may be set anywhere above input 1
setting. Minimum input span is 1 Hz.
An Error message will appear if the input 1 and input 2 signals are too close
together.
INPUT CONTACT
DEBOUNCE FILTER Programmable contact debounce filter. Input signal frequency speed selections
of Hi (no filter), Med (250 Hz max input, 2 ms pulse width), and Low (100 Hz max
input, 5 ms minimum pulse width).
TIME BASE Second, minute, hour, or day
GATE Low gate: 1-99 seconds; High gate: 2-9,999 seconds