
User's manual for hytherograph LB-570P 4
LAB-EL Elektronika Laboratoryjna (electronics lab) 4
1. Description of the hytherograph
Gauge LB-570 comes in three versions:
• LB-570A - thermometer for measuring the air temperature,
o described in a separate manual.
• LB-570A - hytherograph for measuring the temperature and humidity of air,
o described in a separate manual.
• LB-570P - hytherograph for measuring the temperature and humidity of air
with the additional external temperature probe LB-571,
Mini hytherograph LB-570P is used to measure the air temperature and humidity,
and to measure the temperature of various media by using the detachable probe LB-
571. The standard version is equipped with a sensors cover (dirt filter) - type F1 (for
integrated temperature and humidity probe – see table 1). Sensor LB-571 exists by
default in version LB-571-TM - for measuring the temperature of metal (contact
version on magnet). Set LB-570P and probe LB-571-TM are designed to examine the
temperature of dew point before painting the metal elements. The sensor Probe LB-
571 can be made in other versions, for example as TL-2, TL-6 (maximum temperature
range-50 ... 120 °C).
LB-570P is a portable device with battery power supply (rechargeable with
charger and by the USB port of computer). The result of the measurement of
temperature and humidity is refreshed several times per second. The hytherograph can
function as a logger, it has built-in comprehensive memory for measurements. It is
equipped with an alarm function - when the alert threshold is overrun, it is signaled
audibly and indicated on display. At any time you can save the measurement result on
the display (STOP function). The meter has the function of automatic switch off -
switch off time can be set for the range 1 ... 30 minutes.
Hytherograph is equipped with a five-key keyboard, using which you can,
among other things, change registration parameters (for example registration interval),
set alarms. Pressing the keyboard key is signaled by a sound. The results are presented
on the backlight LCD screen. The following measurements are available:
• current temperature T1 (build-in sensor),
• the current humidity,
• current temperature T2 (probe LB-571),
• temperature of the dew point (Tdp),
• temperature difference T1 - T2,
• temperature difference T1 - Tdp,
• 2 temperature maximum (max T2),
• 2 temperature minimum (min T2),
• time (hours, minutes).