Specialized manufacturer of Digital Pressure Meters and Load Cells

VALCOM CO.,LTD.

Discontinued on Friday, June 28, 2024.Successor model: VGM5-1
 

Digital Panel Meter VALCOR series
F8/F9 series

Displays the result of operation and two input values simultaneously.

Main display constantly shows the differential or combined pressure between two input channels.
Sub-displays show the input from each channel.

  • 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 Process input: 4–20mA/0–5V/1–5V/0–10V Selectable
Power supply for sensor: DC12V 80mA 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 1000 times/sec max.
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/OFF, 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

F8 2-setting output to ch.1 2-setting output to ch. (1-2)
F9 1-setting output to ch.1 1-setting output to ch.2 2-setting output to ch. (1+2)

Setting 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, 2ビット)
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   F8 2ch.input Differential pressure calculating sumultaneous display-type
(Difference between ch.1 and ch.2 on the main display, input from ch.1 (upper) and ch.2 (lower) on the sub-display at all times)
  F9 2ch.input Addition calculating simultaneous display-type
(Difference between ch.1 and ch.2 on the main display, input from ch.1 (upper) and ch.2 (lower) on the sub-display at all times)
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   N Multiple-input Process input 4–20mA/0–5V/1–5V
Power supply for sensor DC12V 80mA max.
  A5 0–10V/4–20mA (Note)
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: 250Ωor 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
  • (Note)Do not use sensor power supply of this unit when connecting pressure transducer (VALCOM product),
    sensor 0–10V output type(Model code:A5). Please prepare sensor power supply separately.

Dimensions (Unit: mm)

F8/F9 Process 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 terminal FZ Forced zero
4 S3 Comparison setting output 3 terminal 10 P.SEL1 Pattern SEL 1
5 S4 Comparison setting output 4 terminal 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 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
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 Terminal 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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