Specialized manufacturer of Digital Pressure Meters and Load Cells

VALCOM CO.,LTD.

Discontinued on Friday, June 28, 2024.Successor model: VGM5-3
 

Strain Gauge Color Panel Meter VALCOR series
F4/F5 series

Extraordinary performance in the fields of coating and wastewater.

F4/F5 shows differential pressure between two input channels on the main display.
Various setting outputs make it more useful.

  • Current operation state (normal/abnormal) can be found easily by the color of the value (on main display).
  • Measured values can be displayed in 3 colors: red, orange and green, as desired, in areas partitioned by set values.
  • High speed sampling as fast as 1000 samples per second.
  • Fast output enables use for high-speed and safe control purposes.
  • Analog output ranges of 4 to 20 mA, 1 to 5 V and 0 to 5 V included as standard.
  • Output scaling function included, which allows the measurement range to be set variable as desired.

Specifications

Input signal
<GV>
120–1000Ω Gauge sensor input Sensor input range: ±4mV/V
Zero point adjustment range: ±1.35mV/V
Min. measurement sensitivity: 0.14µV/V/digit
Power supply for sensor: DC5V 60mA max.
Input impedance 4–20mA: 68Ω
0–5V/1–5V/0–10V: 68kΩ
Display −9999–9999 (User selectable decimal places)
4-digit LCD with 3 changeable colors (red, orange and green)
Sampling cycle 1000 times/sec Max.
Display renewal rate 1–10 times/sec Selectable
Accuracy Display: ± 0.05%F.S.±1digit (25°C±3°C)
Analog output: ±0.5%F.S. (25°C±3°C)
Analog output 4–20mA/0–5V/1–5V Range to be switched. Option 0–10V (*1)
Setting output
(Select by model)
4-setting Relay output AC125V 0.3A (per 1 setting)/DC24V 1A (per 1 setting)
Response time 6msec. or less (*1)
4-setting Photomos Relay output AC/DC250V 0.1A (per 1 setting)
Response time 5msec. or less (*1)
Operating temperature range 0–55°C (No freezing)
Operating humidity range 35–85%RH (No condensation)
Power supply
(Select by model)
AC90–240V 50/60Hz Current consumpiton 15VA or less
DC24V ±10% Current consumpiton 300mA or less
Dimensions 97(W)×48.8(H)×132.5(D) *Option terminals are not described in the following figure
Weight Approx.300g (Varies with specification)
Accessories Operation manual (1 copy), Unit labels, List of initial settings, Panel mounting bracket, Amphenol connector (5730240) (BCD output function only)
Other Functions Display scaling, Analog output scaling, Display hold (upper peak / bottom peak / transition peak / peak-to-peak / sample hold), Auto-zero, Max./min. value indication, Pattern selection, Simulation, Input value shift sub-display ON/OFFF, Key protection, Main display color change, Display update rate setting, Power-saving mode ON/OFF, Sampling rate setting, Dumping time constant, Zero suppress ON/OFF, Fix-zero
  • (*1)0–90% of response time. Sampling cycle, damping time constant at high-speed setting

Setting output

F4 4-setting output to ch. (1-2)
F5 2-setting output to ch.1 2-setting output to ch. (1-2)

Option output

A5
Analog output
(0–10V)
0–10V Safe load resistance 10kΩ or more
Response time 4msec. or less (*)
Analog output accuracy ±0.5%F.S. (25°C±3°C)
Temperature characteristics ±0.35%F.S./10°C
BO
BCD open collector output
NPN open collector DC50V 100mA or less
Response time 5msec. or less (*)
RS
RS-232C
RS-232C-compliant 2-wire half-duplex Asynchronous
Communication rate (300/600 1200/2400/4800/9600/19200/38400 bps)
Stop bit (1, 2bit)
Parity (NON/ODD/EVEN)
Data length (7, 8bit)
Unit No. (0–99)
R1
RS-485
RS-485-compliant 2-wire half-duplex Asynchronous
Communication rate (300/600 1200/2400/4800/9600/19200/38400 bps)
Stop bit (1, 2bit)
Parity (NON/ODD/EVEN)
Data length (7, 8bit)
Unit No. (0–99)
  • (*)0–90% of response time. Sampling cycle, damping time constant at high-speed setting

Model Selection

Example

Selection Cheak Model Specifications
1.Model   F4 2ch. input Differenital pressure calculating main display switch-type
(Can be switched among ch.1, ch.2 and ch. (1-2) with the [SEL] key)
  F5 2ch. inputDifferenital pressure calculating main display switch-type
(Can be switched among ch.1, ch.2 and ch. (1-2) with the [SEL] key)
2.Power supply [Current consumpiton]   4 DC 24V ±10% Current consumpiton 300mA or less
  7 AC 90–240V Current consumpiton 50/60Hz 15VA or less
3.Input signal GV Strain gauge input
4.Setting output   S 4-setting Relay AC125V 0.3A/DC24V 1A (per 1 setting)
  O 4-setting Photomos Relay output AC/DC250V 0.1A (per 1 setting)
5.Output signal
(Option)
  Blank 4–20mA Safe load resistance: 250Ω or less 0–5V/1–5V Safe load resistance: 10kΩ or more
Analog output accuracy ±0.5%F.S.(25°C±3°C) Temperature characteristics ±0.35%F.S./10°C
  A5 Analog output 0–10V Safe load resistance: 10kΩ or more
  BO BCD open collector output NPN type
  RS RS-232C
  R1 RS-485

Dimensions (Unit: mm)

F4/F5 Strain gauge input type

External dimensions External dimensions External dimensions

Terminal connection

Terminal connection

(A)Terminals for control Output, terminals for control input (upper) connection

Terminal connection
Terminal No. Name Functions Terminal No. Name Functions
1 SCOM COM terminal of comparison setting output 8 HLD Hold
2 S1 Comparison setting output 1 terminal 9 P.SEL2 Pattern SEL 2
3 S2 Comparison setting output 2 FZ Forced zero
4 S3 Comparison setting output 3 10 P.SEL1 Pattern SEL 1
5 S4 Comparison setting output 4 CLR Clear
6 ICOM COM terminal of control 11 ACOM Analog output COM
7 SPC Sample hold clear 12 IOUT Analog (Current) Output+
AZ Auto-zero 13 VOUT Analog (Current) Output+

(B)Option output terminals connection

●BCD signal output

Terminal connection

Amphenol: 5740240 Accessories: Amphenol: 5730240

Item Pin No. Item
EOC (Signal of over the conversion) 1 13 Digital GND.
×100
BCD OUT
1 2 14 1 ×102
BCD OUT
2 3 15 2
4 4 16 4
8 5 17 8
×101
BCD OUT
1 6 18 1 ×103
BCD OUT
2 7 19 2
4 8 20 4
8 9 21 8
- 10 22 -
OVER (Over) 11 23 POL. (Polarity)
- 12 24 -

●RS-232C communication

Terminal connection
Signal name Pin No. Functions Input output
SD 2 Transmit data output
RD 3 Received data Input
FG 1 Frame ground, or cable shield -
RS 4 Request to send output
CS 5 clear to send Input
SG 7 Signal ground -
DR 6 Data set ready Input
ER 20 Data terminal ready output

●RS-485 communication

Terminal connection
Signal name Pin No. Item Input output
A+ 23 Non inverting output Input output
B- 24 Inverting output Input output
SG 25 Signal ground -
Terminator 26 Terminals are
short-circuited
-
27

(C)Input/output terminals connection

Terminal connection

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