Download Programmable Frequency Rate Meter

Programmable Frequency Rate Meter
frequency / Rpm / Speed / Fluid
Features
Trueprocessfrequency/rpm/speedratemonitor
Wide input sensitivity range from 10 mV to 100V
Rangeable of display scale for 4 digital rate setting
High accuracy of 0.02%
12 or 24V exciting voltage provided
4 digits of mximum 9999 counts
Display with super rate LED
Discription
Model MRF is designed to accept frequency count input type & offers a very flexible & switchable ability in frequency rate
conditioning with digital setting & getting required scale.
Itfeatures:
1.Designed of a wide input range span from 0 to 100Hz to 0 to 20KHz & maximum scale 0 to 9999 counts
2.Switchable input range multiplier of 1/10/100 time selection & rate multiplier of 4 digits 0.0001 to 0.9999
3.Selectable decimal point in matching proper engineering unit.
4.Input discriminator for sensitivity adjustment, range from 10 mV to 5V
5.Exciting voltage provided of switchable range ither 12 or 24V for sensor simulating source for field application.
Specification
Accuracy(23±3°C)
Stability
Digits & Display
Configuration
Exciting voltage
response time
Input signal
Input discriminator
Input over
Com. mode voltage
Operating condition
Auxiliary power
0.05%fs + 1 count
Temperature coefficient < 40 ppm per degree C, long term draft<0.002% per year
0.56” super rate LED, maximum 9999 counts
Programmable rate function of 4 digital resolution 0.0001 to 0.9999
Selectable 12 & 24 voltages with load capability of 25 mA maximum
Sample rate 1 of per sec typically
Sensitivity : 10mV to 100V
Waveform : periodical of unipolar or bipolar of voltage type or open collector.
10mV to 5V adjustable
Maximum 250 Vrms for voltage input
2 KVrms / 1 minute 50 / 60 Hz.
Temperature range -10 to 55° C, 0-99% RH non-condensed, storage-25 to 70°C
AC ±15% < 3.5 VA, DC ± 20% < 5 watts
d1
SD
digital rate
setter
0-9 0-9 0-9 0-9
x0.1 x0.01 x0.001 x0.0001
d2
d3
SF
12345678
discriminator
1 10 100 d1 d2 d3
excitingvoltage,on=12V;off=24V
range constant=K
Order from
Model
MRF
Frame ( in mm)
96x48
U
Auxiliary power
AC 110 & 220 V
S
DC option 12 V
1
DC option 24 V
2
DC option 48 V
3
DC option 125 V
4
Input range & calibration
Standard calibration 0-99.99%, display for 1khz input
S
Customer specified
Y
Function of switches
SD-Digital rate seter
4 digits rate multiplier, setting range from 0.0001 to 0.9999
SF-Function switch
1.Decimal point selection of poles P6,P7,P8. Status:on = enable
2.Input range gain selection of range constant K of 1,10,100, controlled by P1,P2,P3.
3.Exciting voltage output for sensor source of 12V & 24V controlled by P4, status : on = 12V, off = 24V
Switching formula
N = rate setting, R = input frequency, k = range constant
N = R/ (FxK)..........# ( F x K ) should ( > or = ) R, @ R < ( F x K ) > 0.1R, K with proper selection
Example : 0-250Hz input, required display 0-800.0
800.0 = 8000 counts
under @R< ( F x K ) > 0.1R, K = 100, N = 8000 / ( 250 x 100 ) = 0.32
Terminal connection
+
-
+
+
-
1
2
3
4
5
Pulse
Input
Exciting
Voltage
Open
Collector
Input
+ (DC option) 6
7
8
AC 110V
AC 220V
Auxiliary Power