Product Overview

Spirax Sarco EL2600 pressure transmitter is an industrial pressure measurement device consisting of a pressure sensor and a 2‑wire transmitter. It is powered via a 4–20 mA current loop and uses a 1/4" NPT process connection, making it suitable for a wide range of installation conditions. Two different ‘U’-tube and valve assemblies are available, with maximum design pressures of 25 bar g and 80 bar g respectively, allowing flexible selection according to the application.

Pressure Ranges

The EL2600 pressure transmitter covers a wide selection of pressure ranges for gauge pressure (bar g), absolute pressure (bar a) and milli‑bar gauge (mbar g):

mbar g	0–100	0–250	0–600
bar g	0–0.1	0–0.25	0–0.6	0–1	0–1.6	0–2.5	0–4	0–6
bar g	0–10	0–16	0–25	0–40	0–60	0–100*	0–160*	0–250*
bar a	0–1.6	0–2.5

(* extended ranges – see technical documentation for details.)

Limits

Temperature limits

Condition	Process temperature	Ambient temperature
EL2600 pressure and temperature control	-30°C to 100°C	-20°C to 80°C
Low‑pressure ‘U’-tube and valve	-30°C to 260°C	No special limit
High‑pressure ‘U’-tube and valve	-30°C to 450°C	No special limit

Overpressure limits

Pressure range	Maximum overpressure Pmax (bar)
0–1.6 bar a, 0–2.5 bar a	10
0–0.1 bar g	1
0–0.25 bar g	2
0–0.6 bar g	4
0–1 bar g	5
0–1.6 bar g, 0–2.5 bar g	10
0–4 bar g	17
0–6 bar g, 0–10 bar g	35
0–16 bar g, 0–25 bar g	80
0–40 bar g	120
0–60 bar g	200
0–100 bar g	320
0–160 bar g	500
0–250 bar g	800

Note: If the applied pressure exceeds the overpressure limit, even for very short periods (a few milliseconds), the sensor may be permanently damaged. Where there is a risk of overpressure, a pressure snubber should be used or a transmitter with a higher range should be selected (this may reduce signal resolution).

Installation

• Where the process temperature is below 100°C, the EL2600 can be mounted directly on the pipeline using the 1/4" NPT connection.
• Where the process temperature exceeds 100°C, the EL2600 must be installed via a ‘U’-tube and isolation valve between the transmitter and the pipework or vessel.

Technical Data

Item	Specification
Sensor types	0–1.6 bar a to 0–16 bar g: piezoresistive sensor; 0–25 bar g to 0–400 bar g: diaphragm sensor
Supply voltage	10–30 Vdc
Accuracy	≤ 0.5%
Repeatability	≤ 0.05% of span
Hysteresis	≤ 0.1% of span
Enclosure rating	IP65
EMC – emissions	BS EN 61326:1997 A1 and A2, Table 4
EMC – immunity	BS EN 61326:1997 A1 and A2, Table 4, Annex A

Materials

EL2600 Transmitter Body

Component	Material
Body	316L (WS 1.4435)
Connector	Polyamide PA 66

Dimensions and Weight

EL2600 Transmitter

Dimension (mm)	A	B	C	D	Weight (kg)
Value	104	57	28	48	0.2

Installation and Maintenance

Installation notes

• When the process temperature is above 100°C, the transmitter must be installed with a ‘U’-tube and isolation valve.
• For detailed installation instructions, refer to the Installation and Maintenance Manual IM-GCM-10.

Maintenance

• No routine maintenance is normally required.
• It is recommended that the transmitter is inspected and checked annually to ensure measurement accuracy and stable operation.

Ordering Information

When ordering, specify the required configuration and pressure range. Example:
1 × Spirax Sarco EL2600 pressure transmitter, range 0–16 bar g.