MODEL: HPR
Space-saving Plug-in Signal Conditioners H-UNIT
[3] OPTIONS
blank: none
/Q: With options (specify the specification)
PULSE SCALER
Functions & Features
• Converting pulse rate into convenient engineering unit for
display on a totalizing counter or meter
• High-density mounting
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
/C02: Polyurethane coating
Typical Applications
/C03: Rubber coating
• Positive displacement flowmeters and turbine flowmeters
• Magnetic tachometers
TERMINAL SCREW MATERIAL
/S01: Stainless steel
CAUTION
26 (1.02)
1) This unit's output waveform is not uniform due to its
scaling method. The user must be aware that it may be
inconvenient for certain types of application.
2) This unit is designed to accept at the maximum of 100
kHz, which may cause errors due to chattering in the input
pulses.
93
(3.66)
137
(5.39)
Use input relays which do not cause chattering (e.g.
mercury relays). Other relays could be used only with a CR
filter, for 10 Hz at maximum.
mm (inch)
3) Use M-System’s Model M2PRU instead of this unit in
conjunction with the pulse output from M-System’s power
transducers.
MODEL: HPR–[1][2]–R[3]
ORDERING INFORMATION
• Code number: HPR–[1][2]–R[3]
R
C = 1 µF
R = 10kΩ
PULSE
SCALER
Specify a code from below for each of [1] through [3].
(e.g. HPR-11-R/Q)
Relay
C
• Input frequency range (e.g. 0 – 356.7 Hz)
• Output frequency range (e.g. 0 – 1.00 Hz)
• Specify the specification for option code /Q
(e.g. /C01/S01)
GENERAL SPECIFICATIONS
Construction: Plug-in
Connection: M3.5 screw terminals (torque 0.8 N·m)
Screw terminal: Nickel-plated steel (standard) or stainless
steel
[1] INPUT
1: Dry contact (max. 100 kHz)
2: Voltage pulse (max. 100 kHz)
Housing material: Flame-resistant resin (black)
Isolation: Input to output to power
Input pulse sensing: Capacitor coupled; detecting pulse rise
Sensitivity adjustment: Single-turn screwdriver adjustment
(front); 25 mVp-p – 5 Vp-p
[2] OUTPUT
1: Open collector (max. frequency 20 kHz)
2: 5 V pulse (max. frequency 20 kHz)
3: Relay contact (max. frequency 2 Hz)
4: 24 V pulse (max. frequency 20 Hz)
Scaling factor: 0.9999 × 10 – 0.0001 × 10–6
0
INPUT SPECIFICATIONS
■ Dry Contact: Mechanical contact or open collector
POWER INPUT
DC Power
Max. frequency: 100 kHz
Pulse width time requirement: 5 μsec. min. (20 msec. min.
for frequencies ≤ 10 Hz)
R: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
Sensing: Approx. 7.5 V DC @ 1 mA
ON/OFF level: ≤ 20 kΩ for ON, ≥ 100 kΩ for OFF
HPR SPECIFICATIONS
ES-3460 Rev.9 Page 1/4
http://www.m-system.co.jp/