Swema SwemaTemp 21 User manual

SwemaTemp 21
Instructions
vers 1.17 KT20171113
SWEMA AB
Pepparv. 27
SE-123 56 FARSTA
Tel: [phone]
Fax: [phone]
E-mail: [email protected]
Web Site: www.swema.com
Contents:
1. Introduction......................... 1
2. Technical data....................... 1
3. Start of instrument................ 1
4. Settings............................... 2
5. Temperature sensors............... 3
Read this before you start using the instrument!
It’s very important that you select Pt-100 mode if you have a Pt-100
sensor and Ni-100 mode if you have Ni-100 sensor, otherwise you will
get inaccurate meter readings. See page 2 how to choose between
Pt-100 and Ni-100.

1. Introduction
SwemaTemp 21 measures temperature with both Pt100 eller Ni100
sensors. SwemaTemp 21 is delivered with two easily replaceable AA
batteries. Standard, alkaline or regular batteries can be used.
2. Technical data
Measuring range: -200…850°C;
IEC 60751 for Pt100 and DIN 43760 for Ni100.
One decimal resolution
Uncertainty (only SwemaTemp 21):
At 0…50°C: ±0,15% read value, min ±0,3°C
At -200…850°C: ±0,2% read value, min ±0,4°C
See probes technical data for uncertainty of SwemaTemp 21
including probe.
The user should correct the measured values with the correction on
the probe calibration protocol to obtain stated uncertainty of measu-
rement.
95% coverage probability in non condensing, non moist air, <80%RH, non aggressive
gases.
Battery: 2 x 1,5V IEC LR6, AA
Size: 180x36x82mm
Weight: 380g
3. Start of instrument
• Press the HOLD button to freeze the value. A star will appear on
the screen.
1.
• Always turn off the instrument before removing the probe.
• When starting the instrument (ON/OFF-button), the
SwemaTemp 21 goes to measuring mode after six seconds.
• If the voltage should drop below 2.4 V, the symbol for low battery
is shown. If the voltage should drop below 1.6 V, the instrument
can’t be turned on.
• Press the LAMP button to light up the screen.

• Switch between °C & °F
Hold down the HOLD button for a long time when you are in
measuring mode to switch between °C and °F
• Switch between Pt-100 & Ni-100
SwemaTemp 21 must know if a Pt-100 or a Ni-100 sensor is
connected. Switch between Pt-100 and Ni-100 by pressing the
button marked ”Pt/Ni”. The display will show Pt if SwemaTemp 21
is set up for Pt-100 sensor or ni for Ni-100 sensor.
4. Settings
2.
• Settings via a computer
SwemaTemp 21 can be connected via USB-cabel to your
computer. Use the program SwemaTerminal and you can acess
 thecalibrationcerticateofyourproductandyougetaccessto
different settings that can be changed. Connect with an USB-
cabel, start the program and press enter. You can also use the
SwemaTemp 21 as a logger together with the program
SwemaTerminal.
5. Temperature sensors
For uncertainty of SwemaTemp 20 + sensors see www.swema.com
Part no.
765250 T14 - Air temperature (Pt-100) -50... 60°C
765260 T50 - Liquid Ø 6 mm, 2 m cable (Pt-100) -50... 70°C
765270 T51 - Oven/tap water Ø 4 x 100mm (Pt-100) -50... 250°C
765280 T52 - Black globe, Ø150 mm (Pt-100) -20... 50°C
765300 T54 - Penetration, Ø3x300mm (Pt-100) -50... 450°C
765310 T55 - Penetration, Ø3x150mm (Pt-100) -50... 350°C
765500 T56 - Surface (Pt-100) -40... 300°C
760660 SWT 316 - Surface on paper cylinders (Ni-100) 0... 200°C

3.