testo-845-P01 17.08.2012 12:19 Seite 1 We measure it. Infrared temperature measuring instrument testo 845 The infrared thermometer with switch optics Non-contact measurement of surface temperature with C reference accuracy 0.75 C and fast measurement technology (scanning 100 ms) %RH Switchable optics for measurements in the far-field (75:1) and close focus (1 mm, distance 70 mm) Especially bright laser marking of actual measurement point Probe input for TC probes for determining emissivity Optical and audible alarm when limit values are violated The testo 845 is a compact infrared thermometer with For measurements at a short distance to the measurement switch optics for the non-contact measurement of surface object, the close focus optics offer a measurement point temperatures. The switchable optics for far-field and close diameter of only 1 mm at a distance of 70 mm. Two laser focus measurements make it possible to measure at short points mark the measurement area. Measurements can also as well as at greater distances. Measurements in the far- be carried out by connecting additional probes. The limit field are taken at an optical resolution of 75:1. This allows values can be individually stored in the instrument as soon surface temperatures to be measured accurately even at as these upper and lower limit values are violated, an greater distances to the measurement object. At a distance audible and an optical signal are given. of 1.2 metres to the measurement object, the measurement point diameter is only 16 mm. A cross laser marks the measurement site exactly. www.testo.comtesto-845-P02 20.08.2015 14:39 Seite 2 testo 845 We measure it. Technical data / Accessories General technical data Operating temperature -20 to +50 C testo 845 Storage temperature -40 to +70 C testo 845, infrared thermometer with cross laser Battery type 2 AA batteries sighting and switchable optics for far-field Battery life 25 h (without laser), 10 h (with laser without measurement and close focus measurement, light), 5 h (with laser and 50% light) incl. PC software with USB cable, service case, calibration protocol, incl. batteries Measurement rate t95: 150 ms Scanning Max/Min/Alarm: 100 ms Part no. 0563 8450 Emissivity Adjustable 0.1 to 1.0 Housing material black/gray, metal screen Optical resolution Far field: 75:1 16 mm 1200 mm (90%) Close focus: 1 mm 70 mm (90%) Dimensions 155 x 58 x 195 mm testo 845 with integrated Weight 465 g humidity module Warranty 2 years testo 845, infrared temperature measuring instrument with cross laser sighting incl. humidity module, switchable optics for far-field and close focus measurement, PC software incl. USB data transfer cable, service case, battery and calibration protocol Part no. 0563 8451 testo 845 + testo 845 with integrated humidity module testo 845 with integrated humidity module Sensor types Infrared Type K (NiCr-Ni) Humidity module Measuring range -35 to +950 C -35 to +950 C 0 to +100 %RH / 0 to +50 C / -20 to +50 C td Accuracy 2.5 C (-35 to -20.1 C) 0.75 C (-35 to +75 C) 2 %RH (2 to 98 %RH) 1 digit 1.5 C (-20 to +19.9 C) 1% of m.v. (+75.1 to +950 C) 0.5 C (+10 to +40 C) 1 C (remaining range) 0.75 C (+20 to +99.9 C) 0.75% of m.v. (+100 to +950 C) Resolution 0.1 C 0.1 C 0.1 C td / 0.1 %RH Part no. Accessories Accessories for measuring instrument Humidity module, upgradeable for testo 845 0636 9784 Plug-in mains adapter, 5 VDC 500 mA with European adapter, 100-250 VAC, 50-60 Hz 0554 0447 External fast charger for 1-4 AA rech. batteries, incl. 4 Ni-MH rech. batteries with individual cell charging and charge 0554 0610 control display, incl. impulse trickle charging, integrated discharge function, with built-in international mains plug, 100-240 V, 300 mA, 50/60 Hz Testo fast printer IrDA with wireless infrared interface 1 roll thermal paper 4 AA batteries 0554 0549 Spare thermal paper for printer (6 rolls), permanent ink 0554 0568 Control and adjustment set for Testo humidity probes, salt solution with 11.3% RH and 75.3% RH, incl. adapter for 0554 0660 Testo humidity probes Adhesive tape, e.g. for reflective surfaces (roll, L.: 10 m, W.: 25 mm), = 0.95, temperature resistant to +250 C 0554 0051 Silicone heat paste (14g), Tmax = +260C, improves heat transfer in surface probes 0554 0004