Emerson Rosemount 148 Quick Start Manual page 22

Quick Start Guide
5.5.3 N7 IECEx Type n - with enclosure
Certificate
Standards used IEC 60079-0:2011, IEC 60079-11:2011
Markings
5.5.4 NG IECEx Type n - without enclosure
Certificate
Standards used IEC 60079-0:2011, IEC 60079-15:2010
Markings
Special conditions for safe use (X):
1. The Model 148 Temperature Transmitter must be installed in a
suitably certified enclosure such that it is afforded a degree of
protection of at least IP54 in accordance with IEC 60529 and EN
60079-15.
5.6 Combinations
K5
5.7 Tables
Table 5-1: Process Temperatures
Temperature Ambient
class temperatures
T6 -50 °C to
+40 °C
T5 -50 °C to
+60 °C
T4 -50 °C to
+60 °C
T3 -50 °C to
+60 °C
T2 -50 °C to
+60 °C
22
IECEx BAS 07.0055
Ex ia IIC T5/T6 Ga, T5(-60 °C ≤ Ta ≤ +80 °C),T6(-60 °C ≤ Ta
≤ +60 °C);
See Table P.C. 2 at the end of the Product Certifications
section for entity parameters.
IECEx BAS 13.0052X
Ex nA IIC T5/T6 Gc; T5(-60 °C ≤ Ta ≤ +80 °C),T6(-60 °C ≤
Ta ≤ +60 °C)
Combination of E5 and I5
Process temperature without LCD cover (°C)
No ext.
55
70
100
170
280
3-in. 6-in.
55 60
70 70
110 120
190 200
300 300
April 2019
9-in.
65
75
130
200
300
Rosemount 148