JUMO Digital Indicator di 308
The JUMO di 308 signaling device shows standard signals in “simple text” as well as temperatures in °C or °F. The fundamental device is pre-configured with a voltage supply for two-wire transmitters, 1 analog input, 2 binary inputs, 2 relay outputs, and 2 logic outputs.
Description
JUMO Digital indicator di 308
The digital indicator shows temperatures in °C or °F and standard signals in plain text.
- Inputs/outputs- The standard instrument is equipped with an analog input, two binary inputs, two relay outputs, two logic outputs as well as a voltage supply for two-wire transmitters.
- Optional modules-Three extension slots can be equipped with additionalinputs and outputs as well as interfaces.
- Displays-The high-contrast, multi-colour LCD display for process value/text and operator prompting contains a five-digit 7-segment display (showing the value or
parameter setting) and an eight-digit 16-segment display with colour change (value, parameter name, channel name, process/alarm text as max. 24 character ticker or pseudo bargraph). Four additional switch position indicators are available for binary outputs (relay or logic). - Operation The instrument is operated and configured by four keys; an optional setup program for a PC is available. The user-friendly setup program provides additional configuration possibilities (e.g. math and logic functions, display texts).
- Special functions-The instrument offers 4 configurable limit comparators and an optional math and logic module (two virtual channels).Extensive binary functions are available for the assignment of functions to the signals of limit comparators, logic and binary inputs.
- Probes- 10 types of probes (RTD temperature probe, thermocouple, resistance transmitter, standard signals) and more than 20 linearisations are available for analog input configuration. Customer-specific linearisation with 10 interpolation points or by the entry of the polynomial coefficients is possible.
- Interface and electrical connection-An optional interface (RS422/485 or PROFIBUS-DP) can be used for integration of the instrument in a data network.
The electrical connection is made at the back of the instrument by means of screw terminals.
JUMO Digital indicator di 308
Technical Data:-
Thermocouple input
1 incl. measuring accuracy at the cold junction
2 in the range from 300…1820°C
| Designation | Measuring range | Measuring
accuracy1,3 |
Ambient
temperature error |
| Fe-Con „L“
Fe-Con „J“ Cu-Con „U“ Cu-Con „T“ NiCr-Ni „K“ NiCr-Con „E“ NiCrSi-NiSi „N“ Pt10Rh-Pt „S“ Pt13Rh-Pt „R“ Pt30Rh-Pt6Rh „B“ W5Re-W26Re „C“ W3Re-W25Re „D“ W3Re-W26Re Chromel-Copel EN 60584 EN 60584 EN 60584 EN 60584 EN 60584 EN 60584 EN 60584 EN 60584 GOST R 8.585-2001 |
-200 to +900°C
-200 to +1200°C -200 to +600°C -200 to +400°C -200 to +1372°C -200 to +1000°C -100 to +1300°C 0 to +1768°C 0 to +1768°C 0 to +1820°C 0 to +2320°C 0 to +2495°C 0 to +2400°C -200 to +800°C |
≤ 0.25%
≤ 0.25% ≤ 0.25% ≤ 0.25% ≤ 0.25% ≤ 0.25% ≤ 0.25% ≤ 0.25% ≤ 0.25% ≤ 0.25% 2 ≤ 0.25% ≤ 0.25% ≤ 0.25% ≤ 0.25% |
100ppm/K
100ppm/K 100ppm/K 100ppm/K 100ppm/K 100ppm/K 100ppm/K 100ppm/K 100ppm/K 100ppm/K 100ppm/K 100ppm/K 100ppm/K 100ppm/K |
| Cold junction | Pt 100 internal |
1 incl. measuring accuracy at the cold junction.
2 in the range from 300…1820°C.
RTD temperature probe input-
3 The accuracy refers to the max. measurement range span. The linearization accuracy is
reduced with short spans.
| Designation Connection
circuit |
Measuring
range |
Measuring
accuracy3 3-/4- wire 2- wire |
Ambient
temperature error |
||
| Pt100 DIN EN
60751 |
2-wire/3-wire/
4-wire |
-200 to +850°C | ≤ 0.05% | ≤ 0.4% | 50ppm/K |
| Pt500 DIN EN
60751 |
2-wire/3-wire/
4-wire |
-200 to +850°C | ≤ 0.2% | ≤ 0.4% | 100ppm/K |
| Pt1000 DIN EN
60751 |
2-wire/3-wire/
4-wire |
-200 to +850°C | ≤ 0.1% | ≤ 0.2% | 50ppm/K |
| Pt50 GOST
6651-94 |
2-wire/3-wire/
4-wire |
-200 to +850°C | ≤ 0.1% | ≤ 0.8% | 50ppm/K |
| Pt100 GOST
6651-94 |
2-wire/3-wire/
4-wire |
-200 to +850°C | ≤ 0.05% | ≤ 0.4% | 50ppm/K |
| Cu50 GOST
6651-94 |
2-wire/3-wire/
4-wire |
-50 to +200°C | ≤ 0.2% | ≤ 1.6% | 50ppm/K |
| Cu100 GOST
6651-94 |
2-wire/3-wire/
4-wire |
-50 to +200°C | ≤ 0.1% | ≤ 0.8% | 50ppm/K |
| KTY11-6 | 2-wire | -50 to +150°C | – | ≤ 2.0% | 50ppm/K |
RTD temperature probe input (continued)-
| Sensor lead
resistance |
max. 30Ω per lead for 3-wire/4-wire circuit |
| Measuring current | approx. 250µA |
| Lead compensation | Not required for 3-wire and 4-wire circuit. For a 2-wire circuit, the
lead resistance can be compensated in the software by correcting the actual value. |
Standard signals input-
3 The accuracy refers to the max. measurement range span. The linearization accuracy is
reduced with short spans.
| Designation | Measuring range | Measuring
accuracy3 |
Ambient
temperature error |
| Voltage | 0(2)—10V
0—1V Input resistance RIN > 100kΩ |
≤ 0.05%
≤ 0.05% |
100ppm/K
100ppm/K |
| Current | 0(4)—20mA
Voltage drop ≤ 1.5V |
≤ 0.05% | 100ppm/K |
| Resistance transmitter | min. 100Ω, max. 4kΩ | ± 4Ω | 100ppm/K |
Outputs
| Relay (change-over) Contact rating Contact life | 5A at 230VAC resistive load350,000 operations at rated load/750,000 operations at 1A |
| Relay (changeover (option))Contact ratingContact life | 8A at 230VAC resistive load100,000 operations at rated load/350,000 operations at 3A |
| Relay (n.o. make (option)) Contact rating Contact life | 3A at 230VAC resistive load350,000 operations at rated load/900,000 operations at 1A |
| Logic output | 0/12V / 25mA max. (sum of all output currents) |
| Solid-state relay (option) Contact rating Protection circuitry | 1A at 230V Varistor |
| Voltage (option) Output signals Load resistance Accuracy | 0—10V / 2—10V RLoad ≥ 500Ω ≤ 0.5% |
| Current (option) Output signals Load resistance Accuracy | 0—20mA / 4—20mA RLoad ≤ 500Ω ≤ 0.5% |
| Voltage supply for 2-wire transmitter | electrically isolated, not stabilised 15.8—15.2V / 30—50mA (no-load voltage approx. 25V) |
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