Digital Temperature Monitors Digitemp 2310N (N = 0,1,2, Etc.)
The series DigiTemp 2310N instruments are panel mounted Digital Temperature Monitors designed to interface with any specified RTD or T/C sensor. In addition to temperature indication in °C, they incorporate provisions for Alarm outputs which can be tailored by the user, at site, to suit his HI/LO and Fail-safe/Nonfail-safe alarm requirements.
A series DigiTemp 2310N instrument incorporates a signal conditioning module, an A/D converter with LED display, one or two HI/LO alarms and a power supply circuit all using amply derated low-power integrated circuits. The span, zero and alarm adjustments located inside the instrument, are accessible from the front after pulling out the sliding chassis without disconnecting signal or power to the instrument. All environment sensitive components are potted in epoxy for reliability in unfriendly environment.
INPUT SPECIFICATIONS
SENSOR OPTIONS
RTDs & T/Cs as per the Sensor Table given below
| Opt. Code |
RTD Type |
Inst. Range Limits °C |
Opt. Code |
T/C Type |
Inst. Range Limits °C |
Min Span |
Max Span |
| P |
Pt 100 |
-200 to 800 |
J |
Fe/Const |
-50 to 700 |
200 |
500 |
| Q |
Pt 46 |
-200 to 600 |
K |
Cr/Al |
-50 to 1200 |
200 |
800 |
| C |
Cu 53 |
-40 to 150 |
T |
Cu/Const |
-100 to 400 |
200 |
300 |
| N |
Ni 100 |
-40 to 180 |
E |
Cr/Const |
-100 to 800 |
200 |
400 |
| (Min Span for any RTD > 100) |
S |
Pt/Pt-Rh(10%) |
100 to 1700 |
700 |
1000 |
| (Max Span for any RTD as above) |
R |
Pt/Pt-Rh(13%) |
100 to 1700 |
700 |
1000 |
| Note : Span other than above are available with reduced accuracy |
Sensor Standard
Calibratable in any Standard. Unless specified, instruments will be factory calibrated as per DIN 43760 for RTDs and as per ISA/ANSI MC 96.1for T/Cs
Input Sensor Specs
| RTDs |
: |
Bridge Current 0.5 to 1.5 mA. |
| T/Cs |
: |
Input Imp of > 1 Mohm. Auto CJ Compensation of ±1° C accuracy |
Effect of Leadwire
| RTDs |
: |
1°C for 10% of nominal resistance per lead for 3-wire RTDs |
| T/Cs |
: |
1°C for T/C lead-wire resistance of 100 ohms |
Common Mode
Common Mode voltage of 110V AC, 50 Hz produces an error of 2°C max.
OPERATOR INTERFACE
No of Displays
One or Two depending on Model
Display Type
7 Segment 3½ dgt 12mm or 4½ dgt 8mm RED/ORANGE LEDs. 20/25mm, 50mm LEDs and Bargraph available in Model 23104 in specific sizes.
Accuracy (1Yr)
| RTDs |
: |
±0.2% of rdg ± 1 dgt. |
| T/Cs |
: |
±0.5% of rdg ± 1 dgt ± CJ Error (1°C) |
U/R & O/R LEDS
Indicate Under-range and Over-range of input parameter
Alarm Status
Active alarm is indicated by lighting an LED for each alarm
OUTPUT SPECIFICATIONS
Output Options
| Option I |
: |
Indicator only. No Alarm |
| Option B |
: |
Indicator & 2 Alarms |
| Option A |
: |
Indicator & 1 Alarm |
| Option C |
: |
Indicator & 4 Alarms |
ALARM OUTPUT SPECIFICATIONS
| Alarm Type |
: |
User selectable High or Low |
| Alarm Status |
: |
Indicated by an LED on front panel. |
| Alarm Settings |
: |
Settable throughout the Input Range |
| Acc. of Setting |
: |
±0.5% of f.s. with a hysteresis of 0.5% of f.s. |
| Relay Operation |
: |
User selectable fail-safe or nonfail-safe |
| Contact Output |
: |
One change-over contact of 230V AC/DC, 3A, 100VA per alarm |
POWER SUPPLY SPECIFICATIONS
Power Options
| Option A |
: |
230V AC, 50Hz ± 15%. |
| Option B |
: |
110V AC, 50Hz ± 15%. |
| Option C |
: |
24V AC, 50Hz ± 15%. |
| Option D |
: |
24 V DC ± 15%. |
ENVIRONMENTAL SPECIFICATIONS
| Rated Temp |
: |
5 to 55 °C |
| Humidity |
: |
Less than 80% RH ( Non-Condensing ) |
| Zero Drift |
: |
Less than 1dgt for every 10°C outside the recommended 22 - 32°C ambient |
| Span Drift |
: |
Less than 0.0025% of rdg / °C |
| Storage Temp |
: |
0 to 70 °C |
MECHANICAL SPECIFICATIONS
Enclosure Type
Welded construction with pullout chassis
Painting
Powder Coated
Enclosure Options
| Option |
Enclosure Type |
Bezel Size |
Cutout Size |
| A |
Square |
72(W) x 72(H) |
68(W) x 68(H) |
| C |
Horizontal |
96(W) x 48(H) |
92(W) x 44(H) |
| D |
Square |
96(W) x 96(H) |
92(W) x 92(H) |
| E |
Vertical |
72(W) x 144(H) |
68(W) x 138(H) |
| F |
Horizontal |
144(W) x 72(H) |
138(W) x 68(H) |
| H |
Vertical |
96(W) x 192(H) |
92(W) x 186(H) |
| L |
Horizontal |
192(W) x 96(H) |
186(W) x 92(H) |
| G |
Custom |
|
User Specified |
I/O Terminals
Suitable for 1.5 Sq. mm wires. MKDS 3 of Phoenix OR Equivalent
ACCESSORIES
Standard
Operation Manual, Mounting Clamps, Screws, Fuses, Warranty Certificate.
Optional
Calibration Certificate Traceable to NPL
ORDERING INFORMATION
Available Modelsx
The Models available as standard products in the Series 2310N are listed below along with their standard options.
| Model No. |
No of Inputs |
Display Size |
Sensor Options |
Output Options |
Power Options |
Enclosure Options |
Encl Depth |
| 23100 |
One |
3½,12mm |
All |
I,A |
A,B,C,D |
C,D,E,F |
150 mm |
| 23101 |
One |
3½,12mm |
All |
I,A,B |
A,B,C,D |
C,D,E,F |
200 mm |
| 23102 |
Two |
3½,12mm |
All |
I,A,B |
A,B,C,D |
D,E,F |
250 mm |
| 23103 |
One |
4 dgt, 8mm |
All |
I,A,B |
A,B,C,D |
E |
200 mm |
| 23104 |
One |
Custom |
All |
I,A,B,C |
A,B,C,D |
A,B,C,D,E,F,H,L,M,G |
250 mm |
Ordering Code
To Order an instrument of your choice, first identify the Models which satisfy your alarm function requirements, then select a specific Model on the basis of Enclosure, No of Sensors etc. You can completely specify your Choice by giving an ordering code in the following format
| Model No. |
Input Code |
Output Code |
P.S. Code |
Encl Code |
Range Value |
Custom Feature |
| 2310N |
X |
X |
X |
X |
/NNN-MMMM/ |
See Notes |
Note:
1. Numerals in /NNN-MMMM/under Range Value represent the range required
2. Custom feature is absent for standard options & specifications as given in the above description Deviations in any specification or option are emphasised by letter `G' against the Option Code. For Custom requirements the custom feature is to be added to the Ordering Code/Information. |
Example 1
Specify 23101PBAE/0-800/ to order DigiTemp 23101 for one PT-100 RTD with a range of 0-800°C, 12mm LED Display, two HI/LO Alarms, operating on 230V AC, 50Hz and housed in a 72(W) x 144(H) x 200(D) mm Enclosure.
Example 2
Specify 23104PBAG/0-800/G {where G = Enclosure Cutout of 210(W) x 115(H), depth = 200mm and a display of 25mm LEDs} to order DigiTemp 23101 for one PT-100 RTD with a range of 0-800 °C, 25mm LED display, two HI/LO Alarms, operating on 230V AC, 50Hz and housed in a 210(W) x 115(H) x 200(D) mm Enclosure. |
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