DatasheetDynisco 1391 Indicator Series Process Indicator
The Dynisco 1391 is a microprocessor-based process indicator in a compact 1/8 DIN format. It provides a field-selectable display and dual configurable alarms, making it suitable for applications where process values from current loop or voltage signals must be displayed, monitored and optionally retransmitted to other systems.
The 1391 includes a built-in power supply designed to power voltage or current transmitters. This allows 2- and 4-wire transmitters to be supplied directly from the indicator. The operator can store operating parameters, including instrument span, alarm settings and transducer calibration, using the four front-panel pushbuttons.
The process indicator can optionally be equipped with MODBus communication and analog retransmission. With the DynaLink configuration software, instrument configurations can be stored, downloaded and managed. Functions such as peak and valley detection, current loop break protection and open input detection support reliable process monitoring and simplify diagnostics during operation.
| Type | Microprocessor-based process indicator |
|---|---|
| Series | Dynisco 1391 Indicator Series |
| Model | 1391 |
| Format | 1/8 DIN |
| Application | Display, monitoring and retransmission of process signals from current and voltage transmitters |
| Instrument type | Microprocessor based indicating panel meter |
| Display | 5 LED digits, 0.5″ / 13.2 mm high |
| Alarm indication | 2 red LEDs for alarm indication |
| Status indication | 1 green LED for remote configuration |
| Dimensions | 1/8 DIN, 1.89″ H × 3.78″ W × 4.13″ D / 48 mm H × 96 mm W × 105 mm D |
| Front panel protection | IP65 / NEMA 4 rated with gasket |
| Accuracy | ±0.1 % of full scale with shunt calibration |
| Normal mode rejection ratio | 60 dB at 50/60 Hz |
| Sampling time | 100 ms |
| Operating temperature | 32…130 °F / 0…55 °C |
| Input signal selection | Push-button selectable for 0…20 mA, 4…20 mA, 0…5 VDC, 1…5 VDC, 0…10 VDC or 0…11 VDC |
| Resolution | 1 digit with range to 10,000; 10,000:1 display with range to 99,900 |
| Display adjustment | Keyboard configurable from 10 to 99,900 with decimal point in any position |
| Auxiliary power supply | 24 VDC |
| Input power | 85…264 VAC, 24 VDC available |
| Zero balance | ±25 % full scale |
| Open input protection | Displays OPEN if any of the four or six sensor wires are open |
| Alarm type | High/low setpoints, direct or reverse acting, automatic or manual reset, masking available |
| Alarm output | Two SPST outputs, NO or NC |
| Contact rating | 0.6 A at 110 VDC, 0.5 A at 220 VDC, 0.3 A at 110 VDC |
| Analog retransmission | Optional 0…20 mA, 4…20 mA max. 500 Ω; 0…5 VDC, 0…10 VDC min. 5000 Ω |
| Retransmission scaling | Output scalable from 0…99,900 |
| Output resolution | ±0.05 % of output span maximum |
| Output accuracy | ±0.2 % of span |
| Serial communication interface | Isolated RS-485 |
| Protocol | Polling / selecting, MODBus / JBus selectable |
| Baud rate | 150 to 19,200 Baud |
| Format | 8 bits + parity or 8 bits without parity |
| Parity | Odd / even |
| Software | DynaLink configuration software |
| Key features | Field-selectable display, dual configurable alarms, internal 24 VDC supply, current loop break protection, peak/valley detection, optional MODBus communication |
