Electrical Features; Mechanical Features - testo 54 Serie Manual De Instrucciones

8 Main technical features
Operation:
by means of two front panel keys
DIsplay:
5-digit display, red 7-segment LED's,
Height of the figures 8 mm
8.1

Electrical features

Input:
Thermoelement-sensor
J (Fe-CuNi)
K (Ni-CrNi)
N (NiCrSi-NiSi)
Temperature ranges:
after DIN IEC 548
J (Fe-CuNi) -210,0 °C ... +1200,0 °C
-346,0 °F ... +2192,0 °F
K (Ni-CrNi) -270,0 °C ... +1372,0 °C
-454,0 °F ... +2501,6 °F
N (NiCrSi-NiSi) -270,0 °C ... +1372,0 °C
-454,0 °F ... +2372,0 °F
Resolution:
0,1°C (0,1°F) or 1°C (1°F)
Reference point compensation:
internal or external (programmable)
Reference point error:
+/–1,0 °C typ.
+/–3,0 °C max.
Linearity error:
< 0,4 % for the whole measuring range at an
ambient temperature of 20°C
8.2

Mechanical features

Housing:
Housing for control panel 48 x 24 mm
according to DIN 43 700, RAL 7021
Dimensions (W x H x D):
48 x 24 x 54 mm
Panel cut-out (W x H):
+0,6 +0,3
45 x 22,2 mm
Mounting depth:
approximately 48 mm
Display range:
-19999 .. 99999, with leading zeros suppression
Measuring range overflow, indicated by ooooo
on the display.
Measuring range underflow, indicated by uuuuu
on the display.
Temperature drift:
0,1 K/K
ambient
Measuring rate:
5 measurements/second, fixed
Display refresh:
1 ... 2 times per second
Display Latch input:
DIsplay stop for the current measured value,
active for log. 1
Switching log. 0: 0 ... 2 VDC
level log. 1: 4 ... 30 VDC
Supply voltage:
10 ... 30 V DC, electrically separated,
with Verpolschutz
Current consumption:
max. 50 mA
Test voltage:
500 V eff ; 50/60 Hz; 1 min
Data backup:
EEPROM
Weight:
approximately 50 g
Protection level:
IP 65 (on the front side)
Connection:
Screw terminal, RM 5.08, 7 poles
Connection diameter:
0,14 .. 1,5 mm 2
single-wire
thin wire 0,14 .. 1,5 mm
wire dimensions
2
AWG 26-16
19