Industrial Instrument · PRxx Series

Process Indicator

Electro-Med’s PRxx Process Indicator is a family of microcontroller based 4 1/2 digit and 5 digit process indicators, for 4-20mA signal input. They sense signal from any closed loop current…

4–20 mA Input SCADA / PLC Ready RS485 Modbus ½"–12" Sizes Custom Build

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Universal Input 4-20 mA, 0-20 mA, 0-10V, 0-2V signals supported

SCADA / PLC RS485 Modbus RTU & analog retransmission output

7 Digit Sizes ½", 1", 2", 4", 6", 8", 12" digit heights available

Rugged Build MS powder-coated enclosure, non-fading acrylic panel

Custom Build High/low alarms, dual-side display, bespoke ranges

Product Models

Process Indicator Models

2" / 4"

4 Digit Indicator

Models PR02-4D, PR04-4D

Display type FnD 7 Segment

Display height 2" / 4"

Usage Indoor only

Input 4-20 mA (Standard)

Enclosure MS Powder Coated

Dimensions

2" 280 × 145 × 135 mm

4" 460 × 180 × 80 mm

4" both side 460 × 180 × 160 mm

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6" / 8" / 12"

Jumbo 4 Digit Indicator

Models PR06-4D, PR08-4D, PR12-4D

Display type Dot LED

Display height 6" / 8" / 12"

Usage Indoor / Outdoor

Input 4-20 mA (Standard)

Enclosure MS Powder Coated

Dimensions

6" 750 × 260 × 80 mm

6" both side 750 × 260 × 160 mm

8" 800 × 280 × 80 mm

8" both side 800 × 280 × 160 mm

12" 1120 × 400 × 80 mm

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2" & 4" 5 Digit 5 Digit Indicator

5 Digit Indicator

Models PR02-5D, PR04-5D

Display type FnD 7 Segment

Display height 2" / 4"

Usage Indoor only

Input 4-20 mA (Standard)

Enclosure MS Powder Coated

Dimensions

2" 280 × 145 × 135 mm

4" 460 × 180 × 80 mm

4" both side 460 × 180 × 160 mm

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6" / 8" / 12" 5 Digit

Jumbo 5 Digit Indicator

Models PR06-5D, PR08-5D, PR12-5D

Display type Dot LED

Display height 6" / 8" / 12"

Usage Indoor / Outdoor

Input 4-20 mA (Standard)

Enclosure MS Powder Coated

Dimensions

6" 750 × 260 × 80 mm

6" both side 750 × 260 × 160 mm

8" 800 × 280 × 80 mm

8" both side 800 × 280 × 160 mm

12" 1120 × 400 × 160 mm

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6" / 12" P10

P10 Jumbo 5 Digit Indicator

Models PR06-5D-P10, PR12-5D-P10

Display type P10 LED

Display height 6" / 12"

Usage Indoor / Outdoor

Input 4-20 mA (Standard)

Enclosure MS Powder Coated

Dimensions

6" 640 × 160 × 80 mm

12" 1280 × 320 × 160 mm

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Need a different size, input range, or enclosure? Tell us your requirement — we custom-build to spec.

About This Product

Built for Continuous Industrial Monitoring

Electro-Med’s PRxx Process Indicator is a family of microcontroller based 4 1/2 digit and 5 digit process indicators, for 4-20mA signal input.

They sense signal from any closed loop current source and display the corresponding value of data.They can be interfaced with SCADA/PLC using analog retransmission output for process automation.They are used to display process parameters like flow rate, temperature, level speed, pH, power generation, temperature, pressure etc at remote locations in the plant.

Additional features like high/low limit settings, both side display etc can also be given if required. We have the facility to custom build the indicator to include any other feature required by the customer.

Custom display range and decimal point, field-settable
Senses value from any closed loop sensor
4-20 mA signal retransmission (Optional)
Both Side Display for wider visibility (Optional)
RS485 Communication (Optional)
High/low limit alarm relay outputs (Optional)
Built to order with any custom feature or enclosure

4–20 mA

INPUT SIGNAL

½", 1", 2", 4", 6", 8", 12"

DISPLAY SIZES

230V AC / 24V DC

POWER SUPPLY

RS485 / 4–20 mA

OUTPUT OPTIONS

Technical Specifications

Full Specification Table

Parameter	Specifcation
Input Signal	Standard: 4-20 mA Optional: 0-20 mA, 0.4-2V, 0-2V, 0-10V
Display Size	½ Inch, 1 Inch, 2 Inch, 4 Inch, 6 Inch, 8 Inch, 12 Inch Refer Display Size Table
Digits	PRxx : 4 PRxx -5D : 5
Range	PRxx: 0 to 9999, -999 to 9999 PRxx-5D: 0 to 99999, -9999 to 99999
Decimal Point	Field Settable
Power Supply	230 V AC +/- 10%
Mounting	Wall Mounting / Roof Hanging
Enclosure	MS Powder Coated
Output Signal	4-20 mA Retransmission (Optional) MODBUS RS485 (Optional) MODBUS TCP/IP (Optional)
Alarm Output	Separate relays for high and low alarms (Optional)

Model	Variant	Dimensions (W × H × D mm)	Typical Viewing Distance
PR01	Process Indicator, 1 Inch	210 × 135 × 135	10 m
PR02	Process Indicator, 2 Inch	280 × 145 × 135	20 m
PR04	Process Indicator, 4 Inch	460 × 180 × 80	50 m
PR06	Process Indicator, 6 Inch	750 × 260 × 80	75 m
PR08	Process Indicator, 8 Inch	800 × 280 × 80	100 m
PR12	Process Indicator, 12 Inch	1120 × 400 × 80	125 m
PR04-5D	Process Indicator, 4 Inch, 5 Digit	550 × 180 × 80	50 m
PR08-5D	Process Indicator, 8 Inch, 5 Digit	1000 × 280 × 80	100 m

Full dimensional drawings and wiring diagrams are in the datasheet. Download Datasheet (PDF)

How to Order

Ordering Information

Parameter	Options
Code Format	`PR[SIZE]P-[CABINET]-[DIGITS]-[INPUT]-[OUTPUT]-[IPRATING]-[PS]`
Display Size	02P — PR02 (2" Display) 04P — PR04 (4" Display) (default) 06P — PR06 (6" Display) 08P — PR08 (8" Display) 12P — PR12 (12" Display)
Cabinet	SS — Single Side (default) DS — Both Side
Digits	4D — 4 Digits (0–9,999) (default) 5D — 5 Digits (0–99,999)
Input Signal	IN1 — 4–20 mA (default) IN2 — 0–20 mA IN3 — 0–10V DC
Output	OP0 — No Output (default) OP1 — 4–20 mA Retransmission OP2 — Relay Hi/Lo OP4 — RS485 Modbus RTU
IP Rating	IP54 — IP54 Rain + Dust Resistant (default) IP65 — IP65 Fully Dust Tight, Air Tight
Power Supply	PS1 — 230V AC, 50Hz (default) PS2 — 24V DC PS3 — 230V AC + 24V DC (for transmitter)